cognoscibility 
cognoscibility (kog-uos-i-bil'i-ti), . [< cognos- 
cible: see -bi/ity.] The quality of being cog- 
noscible. [Rare.] 
The coynoscibility of God is manifest. 
Barrow, The Creed. 
cognoscible (kog-nos'i-bl), . [< LL. cognosei- 
bitis, < L. cognoscere, know : see cognosce and 
cognition.] 1. Capable of being known. 
Neither can evil be known, because whatsoever is truly 
cognoscible is good and true. 
Jer. Taylor, Works (ed. 1835), I. 723. 
2. Liable or subject to judicial investigation. 
No external act can pass upon a man for a crime that is 
not cognoicible. Jer. Taylor, Works (ed. 1835), II. 313. 
COgnOSCitivet (kog-nos'i-tiv), a. [Irreg. < L. 
co<jro*ce?-e,know (see cognize, cognosce), + -it-ive. 
The reg. form is cognitive.] Having the power 
of knowing ; cognitive. 
An innate coi/noscitioe power. Cudworth, Morality, iv. 1. 
cognovit (kog-no'vit), . [L., lit. he has ac- 
knowledged, 3d pers. sing, perf . iud. of cogno- 
scere, know, recognize : see cognition.] In taw, 
an acknowledgment or confession by a defen- 
dant that the plaintiff's cause, or a part of it, is 
just, wherefore the defendant, to save expense, 
suffers judgment to be entered without trial. 
More fully written cognovit actionem. 
COg-rail (kog'ral), . A rack or rail provided 
with cogs, placed between the rails of a rail- 
road-track, to enable a locomotive provided 
with cogged driving-gear to draw trains up ac- 
clivities too steep for ordinary methods of trac- 
tion. 
The rack or coy-rail in the middle of the track is made 
of two angle-irons which have between them cogs of one- 
aud-a-quarter-inch iron, accurately rolled to uniform size. 
Science, III. 415. 
cogrediency (ko-gre'di-en-si), . [< cogredient: 
see -ency. ] In math. , tne relation of cogredient 
sets of variables. 
cogredient (ko-gre'di-ent), a. [< co- 1 + *gre- 
dient, the form in cornp. (cf. ingredient, and L. 
congredien(t-)s, ppr. of congredi, come together : 
see congress) of gradient, < L. gradien( t-)s, ppr. of 
gradi, go : see gradient, grade.] Literally, com- 
ing together: in math., said of a system of vari- 
ables subject to undergo linear transformations 
identical with those of another system of varia- 
bles. Thus, if when the variables x, y are transformed 
by the formulas 
x = af + bij 
y = cf + dit, 
another set of variables, x', >/, is simultaneously trans- 
formed by the formulas 
x' = af + brj 
y' = cf ' + *)', 
then the two sets are said to be cogredient. 
co-guardian (ko-gar'di-an), . [< co- 1 + guar- 
dian.] A joint guardian. Kent. 
COgue, n. and r. See cog 3 . 
COgware (kog'war), . [Etym. unknown. Cf. 
cogman.] A coarse narrow cloth like frieze, 
mentioned in the reign of Richard II. and used 
by the lower classes in England up to the six- 
teenth century. 
cog-wheel (kog'hwel), 
n. A wheel having 
teeth or cogs, used in 
transmitting motion 
by engagin the cogs 
whe 
c B "' h " 1 
of another similar wheel or of a rack ; a geared 
wheel, or a gear. The direction of the transmitted mo- 
tion is determined by the position and angle of the circle 
of cogs. Cog-wheels include rag- or sprocket- and lantern- 
wheels, and are classitied as spur-, bevel-, and crown- 
wheels, according to the position of the cogs. See these 
words. Cog-wheel respiration. Same as cogged breath- 
sound (whicn see, under breath-sound). 
cog-wood (kog'wud), . [< cog' 2 ' + wood 1 .] A 
valuable timber-tree of Jamaica, which is im- 
perfectly known botanically. It has been re- 
ferred to Ceanotlius Chloroxylon. 
cohabit (ko-hab'it), v. i. [= F. cohabiter = Sp. 
Pg. cohabi'tar = It. coabitare, < LL. cohabitare, 
< L. co-, together, + habitare, dwell : see co- 1 
and habit, v., and cf. inhabit.] If. To dwell to- 
gether ; inhabit or reside in company or in the 
same place or country. 
That mankind hath very strong bounds to cohabit and 
concur in, other than mountains and hills, during his life. 
Donne, Letters, xxxvii. 
I do easily believe that peace, and patience, and a calm 
content did cohabit in the cheerful heart of Sir Henry 
Wotton. I. Walton, Complete Angler, p. 53. 
Specifically 2. To dwell or live together as 
husband and wife : often with reference to per- 
sons not legally married, and usually, but not 
always, implying sexual intercourse. 
1092 
The law supposes that husband and wife cohabit to- 
gether, even after a voluntary separation has taken place 
between them. Boueier. 
cohabitant (ko-hab'i-tant), n. [< LL. cohabi- 
tmi(t-)s, ppr. of cohabitare, dwell together: see 
cohabit.] One who dwells with another or in 
the same place. 
No small number of the Danes became peaceable cohab- 
itants with the Saxons in England. 
Raleigh, Hist. World, iii. 28. 
cohabitation (ko-hab-i-ta'shon), n. [= F. co- 
liabitation = Sp. cohabitacioii = J?g. cohabitaySo 
= It. coabitazione, < LL. cohabitatio(n-), < coha- 
bitare, pp. cohabitatus, dwell together : see co- 
habit.] If. The act or state of dwelling to- 
gether or in the same place. 
A cohabitation of the spirit with flesh. 
Dr. H. More, Conjecture Cabalistica, p. 218. 
To this day [1722] they have not any one place of cohab- 
itation among them that may reasonably bear the name 
of a town. Beverley, Virginia, 1. It 54. 
2. The state of dwelling or living together as 
husband and wife: often with reference to per- 
sons who are not legally married, and usually, 
but not always, implying sexual intercourse. 
cohabitert (ko-hab'i-ter), n. A cohabitant. 
Cohabiters of the same region. 
Hobbes, tr. of Thucydides, iv. 
coheir (ko-ar' ), . [< co- 1 + lieir, after L. coheres, 
cohceres, < co-, together, + heres, lueres, > ult. E. 
heir.] A joint heir ; one who has, or has a right 
to, an equal or a definite share in an inheri- 
tance with another or others. 
I am a queen, and co-heir to this country, 
The sister to the mighty Ptolemy. 
Fletcher (and another), False One, ii. 3. 
The heir was not necessarily a single person. A group 
of persons, considered in law as a single unit, might suc- 
ceed as co-heirs to the inheritance. 
Maine, Ancient Law (3d Am. ed.), p. 176. 
coheiress (ko-ar'es), . [< co- 1 + heiress. See 
coheir.] A joint heiress ; a female who shares 
equally or definitely in an inheritance. 
cohere (ko-her'), v. i.; pret. and pp. cohered, 
ppr. cohering. [Formerly also cohcere, < L. eo- 
hterere, stick together, < co-, together, + harere, 
pp. hasus, stick, cleave: see hesitate, and cf. ad- 
here, inhere.] 1. To stick, or stick together; 
cleave; be united; hold fast, as one thing to 
another, or parts of the same mass, or two sub- 
stances that attract each other. 
Cohesion is manifested by two surfaces of glass, which, 
if ground exceedingly smooth and placed in contact, will 
cohere firmly. A. Daniett, Prin. of Phys., p. 229. 
2. To be well connected or coherent; follow 
regularly in the natural or logical order; be 
suited in connection, as the parts of a dis- 
course, or as arguments in a train of reason- 
ing. 3. To suit; befitted; agree. 
Had time coher'd with place, or place with wishing. 
Shak., M. forM., ii. 1. 
coherence, coherency (ko-her'ens, -en-si), . 
[= F. coherence = Sp. Pg. coherencia '= It. co- 
erenza, < L. cohterentia, < cohceren(t-)s, ppr. of 
cohcerere, stick together : see cohere, coherent.] 
1. The act or state of cohering; a sticking or 
cleaving of one thing to another, or of parts of 
the same body to each other, or a cleaving to- 
gether of two bodies, as by the force of attrac- 
tion. [In this sense cohesion is more common.] 
When two pieces of wood have remained in contact and 
at rest for some time, a second force besides friction re- 
sists their separation : the wood is compressible, the sur- 
faces come closely into contact, and the coherence due to 
this cause must be overcome before motion commences. 
R. S. Ball, Exper. Mechanics, p. 70. 
This view of the nature of the labellum explains its large 
size, ... and especially the manner of its coherence to the 
column, unlike that of the other petals. 
Darutin, Fertil. of Orchids by Insects, p. 238. 
The United States to-day cling together with a coherency 
far greater than the coherency of any ordinary federation 
or league. J. Fiske, Amer. Pol. Ideas, p. 99. 
2. Suitable connection or dependence, proceed- 
ing from the natural relation of parts or things 
to each other, as in the parts of a discourse or 
of any system ; consistency. 
Little needed the Princes and potentates of the earth, 
which way soever the Gospel was spread, to study ways 
how to make a coherence between the Churches politic and 
theirs. Milton, Reformation in Eng., ii. 
coherent (ko-her'ent), a. [= F. coherent= Sp. 
Pg. coherente = It. coerente, < L. colueren(t-)s, 
ppr. of cohcerere, stick together, cohere : see eo- 
here.] 1. Sticking, or sticking together ; cleav- 
ing, as the parts of a body, solid or fluid, or as 
one body or substance to another; adhesive. 
Consequently when insects visit the flowers of either 
form . . . they will get their foreheads or proboscides 
well dusted with the coherent pollen. 
Darwin, Different Forms of Flowers, p. 96. 
cohesive 
The lower angle of each frustule is coherent to the mid- 
dle of the next one beneath. 
W. B. Carpenter, Micros., 292. 
2. Connected; consistent; having a natural or 
due agreement of parts ; consecutive ; logical : 
said of things: as, a coherent discourse. 
An unerring eye for that fleeting expression of the monil 
features of character, a perception of which alone makes 
the drawing of a coherent likeness possible. 
Lowell, Study Windows, p. 125. 
From the earliest times that men began to form any co- 
herent idea of it [the world! at all, they began to guess in 
some way or other how it was that it all began, and how 
it was all going to end. W . K. Cli/ord, Lectures, I. 191. 
3. Observing due order, connection, or arrange- 
ment, as in thinking or speaking ; consistent ; 
consecutive : said of persons. 
A coherent thinker and a strict reasoner is not to be 
made at once by a set of rules. Watts, Logic. 
4. Suited; fitted; adapted; agreeing. 
Instruct tuy daughter how she shall persever, 
That time and place, with this deceit so lawful, 
May prove coherent. Shale., All's Well, iii. 7. 
5. In bot., sometimes used for connate. 
coherentific (ko-her-en-tif'ik), a. [Irreg. < L. 
cohairen(t-)s, coherent, + -ficus, < facere, make.] 
Causing coherence. [Rare.] 
Cohesive or coherentific force. Coleridge. 
coherently (ko-her'ent-li), adr. In a coherent 
manner ; with due connection or agreement of 
parts ; with logical sequence. 
It Is a history in which none of the events follow one 
another coherently. Ruckle, Civilization, I. iii. 
COheritor (ko-her'i-tor), w. [< co- 1 + heritor.] 
A joint heritor or heir ; a coheir. 
Are a new Calvary and a new Pentecost in reserve for 
these coheritors of the doom to become coheritors of the 
blessedness reserved for the human "sons of perdition "? 
If. A. Rev., CXXVI. 342. 
cohesibility (ko-he-zi-bil'i-ti), n. [< cohesible : 
see -bility.] T?he tendency to unite by cohe- 
sion ; cohesiveness. [Rare.] 
cohesible (ko-he'zi-bl), a. [< L. colHesus, pp. of 
cohcerere, cohere, + -ible.] Capable of cohe- 
sion; cohesive. [Rare.] 
cohesion (ko-he'zhon), n. [== F. collision = Sp. 
cohesion = Pg. cohesao = It. coesione, < L. as if 
f coh{esio(n-), < cohcerere, pp. cohcesus, stick to- 
gether: see cohere.] 1. The act or state of co- 
hering, uniting, or sticking together ; specifical- 
ly, in phys., the state in which, or the force by 
which, the molecules of the same material are 
bound together, so as to form a continuous ho- 
mogeneous mass. This force acts sensibly at insensi- 
ble distances that is, when the particles of matter which 
it unites are placed in apparent contact. At insensible dis- 
tances it is a much greater, at sensible distances a much 
smaller, force than gravitation, so that it does not follow 
the law of variation of the latter. It unites the particles 
of a homogeneous body, and is thns distinguished from 
adhesion, which takes place between the molecules of dif- 
ferent masses or substances, as between fluids and solids, 
and from chemical attraction, which unites the atoms of a 
molecule together. The power of cohesion in a body is es- 
timated by the force necessary to pull its parts asunder. 
In general, cohesion is most powerful among the particles 
of solid bodies, weaker among those of fluids, and least of 
all, or entirely wanting, in elastic fluids, as air and gases. 
Hardness, softness, tenacity, elasticity, malleability, duc- 
tility, and in crystallized bodies cleavage, are to be con- 
sidered properties dependent upon cohesion. The most 
powerful influence which tends to diminish cohesion is 
heat, as shown in the change of a solid to a liquid, or of a 
liquid to a gas, which is effected by it. See gas and liquid. 
2. In bot., the congenital union of one part with 
another. If the parts are similar, as two stamens, their 
union is specifically called coalescence; if dissimilar, as 
calyx and ovary, it is styled adnation. 
3. Connection; dependence; affinity; coher- 
ence. [Now rare in this sense.] 
Ideas that have no natural cohesion. Locke. 
The greatest strength of that prevailing Faction [the 
Romish religion] lies in the close union and cohesion of all 
the part* together. Stillingjleet, Sermons, II. i. 
Cohesion figures, a class of figures produced by the at- 
traction of liquids for other liquids or solids with which 
they are in contact, and divided into surface, submersion, 
breath, and electric cohesion figures. It was found by C. 
Tomlinson, an English physicist, that a drop of liquid, as 
of oil or alcohol, spreads itself out on the surface of water 
always in a definite figure, the figure differing with each 
fluid dropped on the water ; and he suggested that this 
might be employed as a test for oils, etc. The same prin- 
ciple holds true with regard to liquids which, from greater 
specific gravity, sink slowly to the bottom in water, each 
liquid submerged forming a definite figure peculiar to it- 
self. Breath figure* are produced by putting a drop of 
the liquid to lie examined on a slip of mica and breathing 
on it, when again each fluid takes a distinct characteristic 
shape. Electric cohesion fifjures are produced by electrify- 
ing drops of various liquids placed on a plate of glass. 
Magnetic cohesion, that power by which two magnetic 
bodies adhere together, as iron to a piece of lodestone. 
cohesive (ko-he'siv), a. [= Sp. Pg. cohesiro, < 
L. cohcesus, pp. of eohterere, cohere.] 1. Char- 
acterized by, causing, or concerned in cohesion 
or the quality of adhering together, literally 
or figuratively: as, cohesive force. 
