co6pt 
Till- hoard nf elartsieal Studies :in Hi. nl'il by thr new 
lan-il.eje ]! oleSsol -, ati'l certain eminent !ni-!l f'n^t-'l 
for that. purpose, would form tin- a. -ting council or com 
niittoe. .Alt'./' issical Scholarship, p. 198. 
C06ptate (ko-op'tat), c. t. \ \<r<-\. mid pp. cw>/(- 
tii/rtl, ppr. ciiiiiiliiliiii/. [< L. riHijiliitiix, ]>p. of 
<<)/( O-//T, coBpt: seecoopt.] Tochoone i-(in.ji>iiil- 
ly ; coo|it . 
cooptation (ko-op-tii'ulion), ". 1= ''' '"' 
= op. oooptafltoii = Pg. oooptofdo, < I.. 
lin(ii-), < i'iKi/1/iin-. pp. niiii>iniii.t. eoopt: see c- 
(i/it.t'iiii/iliili .] 1. Clioico; selection in general; 
mutual choice. 
I In- liist clcelion and rn-Hi,tntiiiu of u friend. 
ll,n:-,n, Letters, I. v. 19. 
Specifically 2. Cooperative choice; election; 
especially, election to membership in a com- 
inittee, board, or society by its existing mem- 
bers. 
I \viiiihl venture to suggest that the exclusive adoptfun 
of the method oi <<,<, i-talinn for tilling the vacancies which 
must occur in jinn- lioily appears to me to be somewhat 
like a tempting of I'rov idenee. 
Huxley, Anier. Addresses, p. 123. 
I In' bishops elected two earls, the earls two bishops ; 
tin -e l eleetcil two barons; and the six electors added 
by c"-e/''/ /<m II ft een otlirrs. tin- \\ ln.li- number being twen- 
ty-one. Stubb*, Const. Hist., f 251. 
Nevertheless they (guilds) continued to eh(X>se the ma 
gistrates liy co-optation among themselves. 
Kncye. Brit., XV. 33. 
coorbasht, coorbatcht, . and v. See koorbash. 
COordain (ko-6r-<lan'), c. t. [< co- 1 + ordain.] 
To ordain or appoint for gome purpose along 
with another or others. 
Kor tin- licir is the end of the inheritance, as well as he 
is the lord of it. And so must Christ be of all the crea- 
tures appointed and coordained with him. 
Goodwin, Works, II. li. 114. 
coordinal (ko-6r'di-nal), a. [< L. co-, together, 
+ onto (cm/in-), order, + -al : see ordinal.] In 
6f., belonging to the same natural order. 
coordinance (ko-6r'di-uans), n. [< co-i + ordi- 
nance.] Joint ordinance. 
Coordinate (ko-or'di-nat), v. t. ; pret. and pp. 
m<irdiit<ttrd, ppr. fofirdintiting. [< ML. coordi- 
imliifi, pp. of coordinare (> It. coordinare = Sp. 
coordinar = Pg. coordenar = F. eoordonner, for 
"coordincr), arrange together, < L. co-, together, 
+ ordinare, arrange : see co- 1 , and ordain, ordi- 
nate.] 1. To place or class in the same order, 
division, rank, etc. ; make coordinate. 2. To 
place, arrange, or set in due order or proper rel- 
ative position ; bring into harmony or proper 
connection and arrangement. 
Tin 1 different parU of each being must be coordinated 
in such a manner as to render the total being possible. 
Whewell. 
This task of specifying and classifying the concretes of 
Experience is the purpose of Science ; and Metaphysics, 
accepting the generalized results thus reached in the sev- 
eral departments of research, canrdinute* them into asys- 
teiu. 0. II. /,../,,. Probs. of Life and Mind, II. iv. 97. 
3. Specifically, to combine in consistent and 
harmonious action, as muscles. 
Thinking is an active process ; it is one mode of conduct, 
anil therefore its perfection must consist in the harmony 
with which its various actions are co-ordiiuttrd to its prop- 
rr finl. Mirart, Nature and Thought, p. P2. 
coordinate (ko-6r'di-nat), a. and n. [= Sp. 
riinrdinado = Pg. coord'cnado = It. coordinato, < 
ML.C'Hinliiiiititx, pp. : see the verb.] I.n. 1. Be- 
ing of the same order, or of the same rank or 
degree ; not subordinate : as, two courts of co- 
<>nlinatr jurisdiction ; coordinate clauses. 
I can become count iimt>' with that, and not merely sub- 
ordinate thereto. 
Thfoilon' t'ui-ki'i-, Ten Sermons on Religion. 
Step by step, the houses [Lords and roinnion.s] estab- 
lished their positions as powers co-ordinate with one an- 
other and with tin- king. 
A'. .1. r'fi-i-iiiiin. Amer. Lecte., p. 369. 
2. In ninth., using or pertaining to systems of 
coordinates Coordinate geometry, the method of 
treating geometry li\ mean- of systems of coordinates; 
analytical geometry. 
II. n. 1. Something of the same order, de- 
gree, or rank with another or others. 
The idea of IVM iv/m/i'' 1 .* excludes that of superior and 
subordinate, and, necessarily, implies that of equality. 
Calhoun, Works, I. 242. 
2. Iii ninth. . a magnitude belonging to a system 
of magnitudes serving to define the positions 
of points, lines, planes, or other spatial ele- 
ments, liy reference to a tixed figure; henee. 
also, a magnitude of a system serving to define 
the elements of a continuum, in general, as 
geometrical coordinates do positions in space : 
thus, the latitude, the longitude, and the height 
above the mean sea-level are the three i-titinli- 
1 _:, I 
iiiitf.1 commonly used to define the position of 
a meteorological station. See < m-lixiiin. 
Moreover, ,-ur \al ions liodily movements and their eom 
binatioiM eonstitnle a network i dita 
lively dlsti n^il i^haMe, lint geometrically, so to ] nit i 
leilnnilant anil ]m olnplcte. J. tt'ttnf, Knrje. Hilt., X 
Areal coordinates, a special iai i. t> ..r n iiimai e.x.rdi 
nates, eoiiMMmu "( Hie areas of the three trianule* l.a\in^ 
tile variable point for a i nmn \e[-le\, alnt III- otha 
vi i tn . - f v\.. ui the three fundamental jioints. These areas 
are taken a.i alfeele.l In MH-II al U i-liraii-al ,-i-n- :i 1" MINI 
lip to the area of the flllnlainental triangle. Axes Of CO- 
ordlnates. see.ir/.i. Barycentrtc coordinates, see 
triangular coordinate, below. Blangular coordinates, 
the lw.> angles I'All and l'l!\. where I' is a variable point 
in a plane, while A and Bare fixed points. 8om< tinn - T|I< 
cotangents of these angles are taken as the coordinates. 
Biclrcular coordinates, two quantities serving t.. .lettne 
the position of any jioint in a plane by reference to two 
series of circles wliiili ml MM,, another under a constant 
angle. There are two prineipal kinds of bicircnlar coor- 
dinates. In the first kind, a point having been a&sumed 
whose coordinates are to be infinite, two lines are drawn 
through it (commonly at right angles), and all the nQi 
dinate circles have their centers on these lines and pass 
through their intersection. One circle of each of these se- 
ries passes through tbe variable point. If a is the dNtamc 
from the point of infinite coordinates at which either of 
these circles passe* through the line of centers of the cir- 
cles of the same series, the corresponding coordinate is 
A + l/o. where A ts a constant )>elonging to this coordi- 
nate. In the second kind two fixed points, A and 1!. are 
assumed. Then, eve! -y eirele of one Series passes through 
both the points A and B, while each of the second series 
has its center on the line AB, and cuts all of the first 
series orthogonally. One coordinate is the angle at A 
between the line AB and the circle of the first series pass- 
ing through the variable point, while the second coordi- 
nate is P + (JlogU / + 1 1 S), where i is the distance from 
A to the point at which the circle of the second series 
passing through the variable point cuts the line AB, S is 
the distance AB, and P and Q are arbitrary constants. 
Bilinear coordinates. () Same as vectonal coordinate*. 
See In-low . (6) Cartesian coordinates, or tangential coordi- 
nates based on Cartesian coordinates. Binary coordi- 
nates, non-homogeneous ciKirdinates of (Mjints or lines in 
a plane. Bipunctual coordinates, coordinates fixing 
the positions of points or lines in a plane by reference to 
two fixed pointa and a 
fixed direction of mea- 
surement. Bipnnctual 
coordinates are of two 
kinds, line coordinates 
and point coordinates. 
Bipunctual line coordi- 
nates are the distances of 
a variable line from two 
fixed points measured in 
a constant direction. Bi- 
punctual point coordi- 
nates are, each, the nega- 
tive of the reciprocal of 
the distance measured in 
a fixed direction (the same for l>oth coordinates) from 
one of two fixed points of the line joining the variable 
point to the other fixed point. In the figure, S and T 
being the two fixed points, SM and TN are the coordi- 
nates of the line MN ; and tin negatives of their recip- 
rocals are the coordinates of the point P, the intersec- 
tion of \IT and sv Boothian coordinates [named 
after their inventor, the English mathematician James 
Booth], rectangular tangential coordinates. See tangen- 
tial coordinate!!, below. Cartesian coordinates. See 
Carteni/in. - Curve coordinates, coordinates defining 
curves. Curvilinear coordinates, quantities used to 
define the positions of points on a given curved surface. 
Elliptic Coordinates, a system of coordinates for defining 
curves upon an ellipsoid by means of the intersections of 
two systems of confocal hyperboloids. Generalized co- 
ordinates, in analytical , <!.. any system of quantities 
serving to define the positions of the particles of a system. 
and treated in a general manner without sjwcifyiug what 
they are. Homogeneous coordinates, a system eon 
tainingone coordinate more than is sufficient for defining 
the spatial element. One fixed non-homogeneous ei|ttatii m 
subsists l>etween the coordinates, and every other equa- 
tion between them is taken as homogeneous. Ignoratlon 
Of coordinates, the leaving out of account of some of the 
coordinates of a complicated mechanical system : an omis- 
sion which is permissible under certain circumstances. 
Thus, in the kinetical theory of gases the coordinates of 
the individual molecules are not considered. Isother- 
mal coordinates, any pair of quantities serving to define 
the positions of points in a plane by means of two series 
of curves cutting one another at right angles. Line 
Coordinates, a homogeneous system of six coordinates 
tixing the position of a variable line in space. Oblique 
system Of coordinates, iu analytical geom., a system 
In which the coordinate axes are oblique to each other. 
Origin of coordinates, a point whose coordinates are 
equal to zero; the intersection of tbe axes of coordinates. 
Orthotomic coordinates, a system of three quant it ies 
determining the posit ions of points in space by reference to 
three series of surfaces cutting one another nrthouoiially. 
Point or punctual codrdlnates,such coordinates as 
determine tne positions of points. Polar coordinates 
In a plane, a system of coordinates consisting of a railins 
vector, or tne length of a line from the variable point to 
be defined to a fixed point termed the origin, and a vecto- 
rial anu'le, or an^'le K-t\vei -n the ratlins vector and a fixed 
line through tbe oik-in, i alleii tin- initial tin'', or polar 
axis. Polar coordinates In space, a system of e li 
nates consisting of a raitin.^ \eetor, a plane vectorial angle, 
and a dihedral angle. A radius vector and three direc- 
tion-eoMiies used to determine the position of points in 
space ate also sometimes called jiolareoordinates. - Quad- 
rtplanar coordinates, homogeneous point coordinates 
in space denning a variable point liy in .li-tan.es from 
four li\ed plane-, these iii>tanre. 1., ii,- n;. asured in fixed 
directions. Rectangular coordinates, a system of 
quantities serving to determine i<o>itiMii- i.y a reference 
Bipunctual Coordinates. 
coot 
to two axes in a plane. 1-1 tin ee in -ia> e. u jiieh ent one 
another at 1 1 Rodrtgues s coordinates, a 
ii of quantities sel'V 111- to ileltne the ]..,-]! |,,n 
of a rigid body which has one ],omt fixed. Sueh a lnly 
i an IK; liroil^ht from all} as-ni 1 po-iiim, to an> {mHsthle 
.u by means of a rotation i 
tixed point. Three of Idnlrigues M....I ilmates arc the di. 
lertioli eo-ine* of thin a\l urtb Is tile lili-le oi 
rotation. Spherical coordinates, Milan::' 
to latitude and longitude, n-ed to determine the position, 
MI |,..int - on a 'Hen .-pie i. Tangential coordinate*. 
i < 101 , 1 in.it..- de tin ing the positions ><t lines in a plane ..i .1 
planes in space.- Tetrahedral coordinates, or bary- 
centric coordinates In space, quadriplanar coor.ii 
nates whose fixed equation is 
* + V + + "T, 
i, y, a, being ti oonlinates. Triangular or bary- 
centlic Coordinates, trilinear coordinates the fixed 
equation of wbieh i- 
* + + *= T, 
where , y, z are the coordinates. Trilinear coordi- 
nates, a system of homogeneous coordinates liellning the 
|H,sitions of points iu a plane in which the llxed llgnrc of 
reference is a triangle, called the fundamental triangle or 
mangle ..1 I vtereni e, ami the coordinates are the di-tani es 
of the variable point from the sides of this triangle mea- 
sured in three llxed directions. Vectortal coordinates. 
the distanees of a variable point in a plane from two fixed 
pointS. Also >li'ill'-:lf ,->"ull < IKltl'H. 
coordinately (ko-6r'di-nat-li), adv. In the 
same order or rank; in equal degree; without 
subordination. 
coordinateness (ko-6r'di-nat-nes), n. The 
state of being coordinate ; equality of rank, au- 
thority, or degree. 
coordination (ko-6r-di-na'shon), n. [= P. co- 
ordination = 8p. coordinacion = Pg. coordenacfio 
= It. coordina:ionr, < ML. as if *coordinatio(n-), 
< coordinare, pp. coordinatus, arrange together: 
see coordinate, r.] The act of rendering or the 
state or character of being coordinate, (n) The 
act of arranging iu the same order, rank, or degree ; the 
relation subsisting among things so arranged. (6) The act 
of arranging ill due order or proper relation, or in a sys- 
tem ; the state of being so ordered. 
In this high court of parliament there is a rare co-on/i- 
natum of power. 
llnuvll. Pre-eminence and Pedigree of Parliaments. 
(c) In pht/xiol., the normal combination of the functions 
of muscular or of secretory tissues. 
By making co-ordination the specific characteristic of 
vitality, it involves the truths that an arrest of co-ordina- 
tion is death, and that imperfect co-ordination is dlMJIM. 
//. Spencer, Prin. of Biol., | 24. 
coordinative (ko-6r'di-na-tiv), a. [< coordinate 
+ -ire.} Expressing or indicating coordination. 
coordinatory (ko-dr'di-na-to-ri), a. [< coordi- 
nate + -ory/J Relating to or helping coordina- 
tion; coordinating. 
The coordinatory system of the lower nervous segments. 
Alien, and A'evrol., VI. 409. 
coorgee (kor'ge), . [E. Ind.] A species of 
plow used in India, fitted with a drill for plant- 
ing rice, wheat, etc. 
COOrong (ko'rong), . [Australian.] The Fre- 
nela robuxta. a coniferous tree of Australia. The 
wood is used for many purposes, that of the root 
being much employed for veneers. 
coorthogonal (ko-or-thog'o-nal), a. [< co- 1 + 
orthogonal.] Cutting one another at right an- 
gles, as four small circles on a sphere may do. 
COOSint, . and a. An obsolete form of cousin. 
coossification (ko-os'i-fi-ka'shon), n. [< coos- 
sify: see -fy and -ation. Cf. ossification.] In 
(unit., the bony union of two previously sepa- 
rate parts. 
COOSSlfy (ko-os'i-fi), f. i. ; pret. and pp. coositi- 
fied, ppr. coossifying. [< co- 1 + oxmjy.] To 
unite into one bone: said of two previously or 
usually separate bones. 
The terminal caudal vertebra are greatly enlarged ver- 
tically, and co-ofxirifd into a raaM. 
i'. D. Cope, Origin of the Fittest, p. 1W. 
COOSSO, . See CUSKO. 
COOSt (kiist). An old English preterit of cast 1 , 
still used in Scotch. 
They before the beggar wan, 
And count them in his way. 
Ratlin Hood and the lleggar (Child's Ballads. V. i;>. 
They reel'd, they set, they cross'd, they cleckit, 
Till 'ilka carline swat and reekit, 
And rn"*7 her duddies to the wark, 
And liuket at it in her sark ! Burn*, Tarn o' Shanter. 
COOt (kot), n. [< HE. coote. mte, a coot ; cf. D. 
koft, a coot ; prob. Celtic : cf. W. cictiar, a coot, 
< rirfn, short, bobtailed, connected with ctctog, 
bobtailed, cwtiad, ctrtyn. a plover: see cut, cut- 
ty.] 1. A lobiped grallatorial and natatorial 
bird, of the genus Fulica and family Hallidn; 
having the toes broadly lobate. the ciilmcn of 
the bill extended on the front as a boss or casque, 
short wings, a very short, cocked-up tail, or bob- 
tail, and thick and duck-like plumage on the 
under surface of the body, in the coots the body U 
