Systachus areas, larva, ffom the side, 
enlat K? d (th<: SIna " fi e ure '"dicatinu the 
Systoechus 
Systcechus (sis-te'kus), n. [NL. (Loew, 1855), 
< Gr. ai-arotxof, standing in the same row, < aiv, 
together, + arolxoi;, a row.] An important ge- 
nus of bee-flies, of the family Bombyliirlx, com- 
prising 4 North American species. S. areas lays 
its eggs upon the 
egg-pods of the 
Rocky Mountain lo- 
cust, or western 
grasshopper, and of 
other short-horned 
grasshoppers, and 
its larvse feed upon 
their eggs, being 
thus highly bene- 
ficial to agricul- 
turists. See also cut 
on preceding page. 
systole (sis'to- 
le),w. [=F. sys- 
tole = Sp. sistole- 
= Pg. systole = 
It. sistole, < NL. 
systole, < Gr. ova- SSHflrS 
TO/I?/, a drawing 
together, a contraction, a shortening, < <TMTTIA- 
f.eiv, draw together, contract, < aiv, together, + 
orfl/lttv, set, place. Cf. systaltic, diastole.] 1. 
In owe. orthoepy and pros. : (a) Pronunciation of 
a vowel as short, (b) The shortening of a vowel 
or syllable, especially of one usually treated 
as a long; correption: opposed to diastole or 
cctasis. 2. In physiol., the contraction of the 
heart and arteries for propelling the blood and 
thus carrying on the circulation. Clinically, sys- 
tole usually refers to the ventricular systole, regarded as 
beginning with the first sound and ending with the oc- 
currence of the second sound. Compare diastole. 
3. The contraction of the pulsatile vesicles of 
infusorians and other protozoans. JF. S. Kent. 
4. [cap."] In entom., a genus of hymenopter- 
ous insects. Walker, 1832 Arterial systole, the 
rhythmic contraction of an artery. -Cardiac systole. 
See def. 2. 
systolic (sis-tol'ik), a. [< systole + -tc.] Per- 
taining to or marked by systole ; contracting. 
It has been said that the aortic orifice of the heart may 
be the seat of two murmurs, in consequence of disease 
of its valve one systolic, from the blood in its direct 
course, the other diastolic, from the blood during re- 
gurgitation. 
Systolic cere- 
bral murmur, 
a blowing sound 
heard over the 
fontanelle In in- 
fants : it was 
once thought to 
be a sign of ra- 
chitis. 
systyle (sis'- 
til), o. [= F. 
systyle, < L. 
systijlos, < Gr. 
f, with 
P. M. Latham, Diseases of the Heart. 
\9 
c*- 6 -+c+- b -Z-c? 
Systyle and Areosystyle Dispositions of 
Columns. 
A. Systyle : the intercolumniations (a) equal 
to two diameters. B. Areosystyle : the inter- 
columniations (c) of the coupled bhafts equal 
to one and a half diameters, those (A) of the 
alternate columns equal to three and a half 
diameters. 
6144 
columns standing close, <mV, together, - 
a column: see style 2 .] In arch., having columns 
which stand somewhat close together; having 
the inteivoluinniations rather narrow in pro- 
portion to the diameter of the shafts. AS usually 
understood, the systyle intercolumniation measures about 
two diameters from center to center of the shafts. Com- 
pare areosystyle, eustyle, and pyciwstyle. 
systylous (sis'ti-lus), a. [< Gr. oiiorvtof, with 
columns standing close: see systyle."] In bot.: 
(a) Having the styles coherent in a single col- 
umn, (b) In mosses, having the lid continuing 
fixed to the columella, and thus elevated above 
the capsule when dry. 
syteH, . An old spelling of siteZ. Spenser. 
syte 2 t, An old spelling of city. 
sythe't, An old spelling of scythe. 
sythe 2 t, See sithe^. 
syvet, >i. An obsolete form of sieve. 
syvert, An old spelling of nicer' 2 for sewer 3 . 
syzygant (siz'i-gant), )t. Inalg.: (a) The left- 
hand side of a syzygy. (b) A rational integral 
function of the invariants or covariants of a 
quantic which, when expressed as a function of 
the coefficients, vanishes identically, (c) An 
irreducible form of degree K which becomes 
reducible when multiplied by *. Called the 
(K+/,)JC syzygant. 
syzygeal (si-zij'e-al), . See syzyyial, 1. 
syzygetic (siz-i-j'ef'ik), a. [< Gr. m/fatf. yoked, 
paired (see syzygy), + -et-ic.] Pertaining to a 
linear relation that is, to a polynomial lin- 
ear in the variables. -Syzygetic cubic, a cubic syzy- 
getically related to two cubics, especially to a given cubic 
and its Hessian. Syzygetic function, a function of the 
form Ax + By + Cz + , where x, y, z are the variables, 
and A, ft, C are arbitrary quantities. Syzygetic mul- 
tipliers, the multipliers of the variables in a syzygetic 
function. 
syzygetically (siz-i-jet'i-kal-i), arfc. With ref- 
erence to a linear relation, or syzygy. 
syzygial (si-zij'i-al), a. [< syzygy + -al] I. 
Pertaining to a syzygy; belonging to or de- 
pending upon the moon's position in the line 
of syzygies. In this sense also, improperly, 
syzygeal. 
The moon's greatest tidal action being syzygial, and the 
least at quadrature, should cause maximum impulse about 
the former, and minimum near the latter, period. 
Fitz Roy, Weather Book, p. 253. 
2. Having the character of the articulation 
called a syzygy. 
The anchylosed ring of first radials is succeeded by a 
tier of free second radials, which are united by a straight 
syzygial suture to the next series the radial axillaries. 
Sir C. Wyville Thomson, Depths of the Sea, p. 449. 
syzygium (si-zij'i-um), .; pi. syzygia (-a). [NL., 
<. Gr. (jufijTOf, (ruftrj'oCi yoked, paired : see syzy- 
gy.] In zool., a syzygy. 
syzygy (siz'i-ji), .; pi. syzygies (-jiz). [= F. 
syzygie = Pg. syzigio,< L. syzygia (NL., in zool., 
szaibelyite 
v '.'/~.'/.'/""")i < - GV. av(,vyia,& conjunction, coupling, 
pair, in pros, a syzygy, < o-i'v'jof, yoked toge- 
ther, paired, < av^evyv'n'at, yoke or join together, 
conjoin, couple, < aiv, together, + &vyvvvai. 
(V f"))> yoke, join: see join, yoke.] 1. In ,v- 
tnni., the conjunction or opposition of a planet 
with the sun, or of any two of the heavenly bod- 
ies. On the phenomena and circumstances of 
the syzygies depends a great part of the lunar 
theory. 2. In anc. pros., a group or combina- 
tion of two feet. Ancient metricians varied in their 
use of this term. Some use it regularly for a dipody or (di- 
podic) measure. Others call a tautopody, or double foot, 
a dipody, but a combination of two different feet a syzygy. 
Some, accordingly, giving the name njzyiju to tetrasyl- 
labic feet (regarded by them as composed of two dissyllabic 
feet), speak of an iambic or a trochaic line as measured by 
dipodies, but an Ionic line as measured by syzygies tha't 
is, by single Ionics considered as combinations of trochees 
and pyrrhics. A peculiar use is the restriction of the term 
yzygy to compound feet of five or six syllables. 
3. In dig., a linear function in the variables. 
See syzygetic. 4. In zool., the conjunction of 
two organs or organ- 
isms by close adhesion 
and partial concrescence, 
without loss of their 
identity; also, the thing 
so formed, or the result- 
ing conformation; a sy- 
zygium : a term various- 
ly applied, (a) 'Zygosis or 
conjugation, as observed in 
various protozoans and other 
low organisms. See conjuga- 
tion,l, Diplozoon, and diporpa. 
(b) Suture, or flxed articula- 
tion, of any two joints of a cri- 
noid ray, or the joints thus 
sutured, with partial oblitera- 
tion of the line of union. 
The first of the brachial 
joints [in the Pentacrinus a- 
teria} that is to say, the joint immediately above the 
radial axillary is, as it were, split in two by a peculiar 
kind of joint, called by Muller a "syzytjy." All the ordi- 
nary joints of the arms are provided with muscles pro- 
ducing various motions, and binding the joints firmly to- 
gether. The syzygies are not so provided, and the arms 
are consequently easily snapped across where these occur. 
Sir C. WyvUle Thomson, Depths of the Sea, p. 440. 
Epirrliematic syzygy, in anc. pros., the last four parts 
of the parabasis that is, the strophe or ode, epirrhema, 
antistrophe or antode, and antepirrhema : the choric as 
distinguished from the monodic parts of the parabasis. 
szaboite (sab 'o -it), . (Named after Prof. 
J. Szabo, of Budapest in Hungary.] A vari- 
ety of hypersthene, first described erroneous- 
ly as a new triclinic member of the pyroxene 
group. 
szaibelyite (sa-bel'yit), . [Named from Szaj- 
belyi, a Hungarian.] A hydrous borate of mag- 
nesium, occurring in white nodules of acicular 
crystals in a gray limestone at Werksthal in 
Hungary. 
Syzygy 
