quadricinium 
quadricinium (kwod-ri-sin'i-um), n.; pi. quad- 
rieinia (-a,). [XL., < L. quattuor (qundri-), = 
E. four, + euiicre, sing.] In music, a composi- 
tion for four voices. Also quatririiiiinii. 
quadricipital (kwod-ri-sip'i-tal), a. [< qn/iilri- 
ceps (-cipit-) + -al.] Having four heads or ori- 
gins, as a muscle ; of or pertaining to the quad- 
riceps. 
quadricone (kwod'ri-kon), . [< L. quattuor 
(quadri-), = E.four, + conns, cone: see emu'.] 
A quadric cone, or surface generated by the 
motion of a line through a fixed point, one 
point of which describes a conic section. 
quadricorn (kwod'ri-korn), . and n. [< NL. 
mis, < L. quattuor (quadri-), = E.foitr, 
Quadricom Sheep (Ovis artes, var. 
+ cornii = E. horn.] I. a. Having four horns 
or horn-like parts, as antennse; quadricornous. 
II. n. A quadricorn animal. 
quadricornous (kwod-ri-k6r'nus), a. [< quad- 
rieorn + -ous.] Having four horns; quadricorn. 
quadricostate (kwod-ri-kos'tat), a. [< L. quat- 
tuor (quadri-), = E. four, + eosta, rib: see cos- 
ta, eosta te.] Having four ribs or costffi, in any 
sense. 
quadricrescentic (kwod"ri-kre-sen'tik), a. [< 
L. qiMttuor (quadri-), = E.four, + E. crescent 
+ -ic.] Having four crescents ; quadricrescen- 
toid. 
quadricrescentoid (kwod-ri-kres'en-toid), a. [< 
L. quattuor (quadri-), = E. four, + E. crescent 
+ -oid.] In odontog., having four crescendo 
folds : noting a pattern of selenodont dentition. 
quadricuspidal (kwod-ri-kus'pi-dal), . [< L. 
quattuor (quadri-), = E.four, + cuspis (cuspid-), 
a point: see cuspidal.] A ruled surface of the 
eighth order Limited quadricuspidal, a ruled sur- 
face of the fourth order, generated by the motion of a 
straight line cutting two given straight lines and touch- 
ing a given quadric surface. 
quadricuspidate (kwod-ri-kus'pi-dat), o. [< L. 
quattuor (quadri-), = E.four, + cuspis (cuspid-), 
a point: see cusp, cuspidate.] Having four 
cusps, as a tooth. W. H. Flower, Encyc. Brit., 
XV. 402. 
quadricycle (kwod'ri-si-kl), n. [< L. quattuor 
(qundri-), = E. four. + LL. cyclm, cycle : see 
cycle 1 .] A four-wheeled vehicle intended to be 
propelled by the feet of the rider. 
A Quadricycle for pedal propulsion on railways. 
The Emjineer, LXV. 109. 
quadridentate (kwod-ri-den'tat), a. [< L. quad- 
riden(t-)s, having four teeth, < quattuor (qua- 
dri-), = E. four, + den(t-)s = E. tooth : see den- 
tate.] Having four teeth or tooth-like parts, 
as serrations. 
quadriderivative (kwod"ri-de-riv'a-tiv), n. [< 
L. qitattuor (quadri-), = 'E.four, + E. derivative.] 
A derivative invariant of the second order. 
quadridigitate (kwod-ri-dij'i-tat), a. [< L. 
quattuor (quadri-), = E. four, + L. digitus, fin- 
ger or toe : see digit, digitate.] Having four 
digits, whether fingers, toes, or other digitate 
parts; tetradactyl; quadrisulcate, as a hoofed 
quadruped. 
quadriennialt (kwod-ri-en'i-al), a. [= F. quad- 
riennal, quatriennal = Sp. cuadrienal = Pg. 
<ln<lri<'iiH<it, < LL. quadrieiinix, of four years, < 
L. quattuor (quadri-), = E.four, + annus, a year.] 
Quadrennial. 
quadrienniallyt (kwod-ri-en'i-al-i), adv. Quad- 
rennially. 
quadriennium (kwod-ri-en'i-um ), w. [L. r/iiiid- 
iii, a space of four years, < LL. quudriai- 
4885 
ii in. of four years: see quadrieimial.] A quad- 
rennium Quadriennium utile, in .*"< law. the four 
years allowed after majority within which may be insti- 
tuted an action of reduction of any deed done to the 
prejudice of a minor. 
quadrifarious(kwod-ri-fa/ri-us), a. [< LL. qimii- 
rifuriiift, fourfold, < L. quattuor (quadri-), = E. 
four, + -farius, as in bifarius, etc. (see bifuri- 
<>itf<).] Set, arranged, or disposed in four rows 
or series: correlated with unifarious, bifarioiix, 
trifnrioug, and multifarious. 
quadrifariously (kwod-ri-fa'ri-us-li), adv. In 
a quadrifarious manner. 
quadrifid (kwod'ri-fid), a. [< L. quadr/fuliix, 
split into four parts, four-cleft, < quattuor (<j/tful- 
/), = E.four, + findere (-\/fid), cleave, split.] 
Four-cleft; deeply cut, but not entirely divided, 
into four parts : correlated with bifid, trifid, 
and multifid. 
The mouth of the animal, situated at one of the poles, 
leads first to a quadrifid cavity. 
W. B. Carpenter, Micros., 630. 
Quadrifidae (kwod-rif'i-de), n. pi. [NL., fern, 
pi. of L. quadrifidus, four-cleft: see quadrifid.] 
In entom., a section of noctuid moths; one of 
the two prime divisions of noctuid moths in 
GueneVs classification. It includes all those fami- 
lies in which the median vein of the hind wings has four 
branches. It contains the largest of the noctuids, and the 
forms are mainly American and East Indian. The char- 
acter which gives the name is not a stable one, and the 
term has nearly fallen into disuse. 
quadrifocal (kwod-ri-fo'kal), a. [< L. quattuor 
(quadri-), = E.four, + focus, focus: see foctts, 
focal.] Having four foci. 
quadrifoliate (kwod-ri-fo'li-at), a. [< L. quat- 
tuor (quadri-), = E.four, 
+ folium, leaf: see foli- 
ate.] In bot., four-leaved, 
(o) Having the leaves whorled 
in fours. (6) Same as quadrifo- 
liolate : an incorrect use. 
quadrifoliolate (kwod-ri- 
fo'li-o-lat), a. [< L. quat- 
tuor (quadri-), = E. four, 
+ foliolus, leaflet.] In 
bot.. having four leaflets: 
said of a compound leaf. 
quadriform (kwod'ri-f6rm), a. [< LL. quadri- 
formis, four-formed, < L. quattuor (quadri-), = 
E. four, + forma, form.] Having a fourfold 
aspect, as in shape, arrangement, etc. 
We can also apply the principle of group-flashing as easi- 
ly to a fourfold light as to a single light. According to 
the number of tiers employed, the arrangement was to be 
named Biform, Triform, Quadriform. 
Fortnightly Rev., N. S., XLIII. 815. 
quadrifrons (kwod'ri-fronz), a. [< L. quattuor 
(quadri-), = E. four, + frons (front-), front: 
see front.] Having four faces. See bifrons. 
quadrifurcate (kwod-ri-fer'kat), a. [< L. quat- 
tuor (quadri-), = E. four, + furca, fork: see 
f urea, furcate.] Having four forks, tines, or 
branches; twice-forked; doubly dichotomous: 
correlated with bifurcate and trifurcate. 
quadrifurcated (kwod-ri-fer'ka-ted), a. [< 
quadrifurcate + -ed 2 .] Same as quadrifurcate. 
quadriga (kwod-ri'ga), .; pi. quadritjee (-je). 
[L., usually in pi. quadrigae, contr. from quad- 
rijugse, a team of four, < quattuor (quadri-), = 
E. four, + jugum (= Gr. vy6v), a yoke, pair, 
team: see yoke.] In classical antiq., a two- 
Quadriga. "The Rape of Proserpine by Pluto," from a Greek 
red-figured vase. 
wheeled chariot drawn by four horses, which 
were harnessed all abreast. It was used in racing 
in the Greek Olympian games, and in the circensian games 
of the Romans. The quadriga is often met with as the 
reverse type of Greek coins, especially those of Sicily, and 
is of frequent occurrence in sculpture and vase-painting. 
The miadriga for which Praxiteles was said to have made 
the driver. A. S. Murray, Greek Sculpture, I. 182. 
quadrigemina(kwod-ri-jem'i-na), n.pl. [NL., 
neut. pi. of L. quadrigeiiiiinis, fourfold: see 
<jU(iil>'igciiiiiiH.i.] The quadrigeminous bodies 
of the brain, moi'e fully called corpora qun/lri- 
yeniiiia. Below mammals they are represented 
quadriliteral 
by the corpora bigemiua, or twin bodies. See 
corpus. 
quadrigeminal (kvvod-ri-jem'i-nal), a. [< quad- 
rigemin-ous + -al.] Fourfold; especially, per- 
taining to the corpora quadrigemina. 
Other fibres, arising in the optic thalamus and quadri- 
>/ u'imd body, descend, which preside over the reflex mo- 
tions. Frey, Bistol. and llistochem. (trans.), p. 594. 
quadrigeminate (kwod-ri-jem'i-nat), a. [< 
qiia</i-ii/<'/iiin-i>us + -ate 1 .] 1. In bot., growing 
in fours, as the cells of certain algse. 2. In 
auat., same as quadrigemiiuiu.i. 
quadrigeminous (kwod-ri-jem'i-nus), a. [< L. 
i/iii//lrii/<iiiiiiiiy, fourfold, < quattuor (quadri-), = 
E. four, + geminus, twin-born, twin : see Gemi- 
ni, geminate.] 1. Consisting of four similar 
parts ; having four parts, as one and the same 
thing; fourfold; quadrigemiual. 2. In anat. 
and zoo/., specifically, pertaining to the optic 
lobes or corpora quadrigemina of any mammal, 
known in human anatomy as the nates and 
testes, which appear as two pairs of lobes or tu- 
bercles on the morphologically superior surface 
of the midbrain or mesencephalon, close to the 
pineal gland, behind the third ventricle, over 
the aqueduct of Sylvius. See corpus and quad- 
rigemina. 
quadrigenarious (kwod"ri-je-na'ri-us), a. K 
L. quadrigeni, qiiadringeni, four hundred each, 
distributive of quadringenti, four hundred, < 
quattuor (quadri-), = E. four, + centum = E. 
hund-red.] Consisting of four hundred. 
quadriglandular (kwod-ri-glan'du-lar), a. [< 
L. quattuor (quadri-), = E. four,' +" glan(d-)s, 
gland : see gland. ] Having four glands or glan- 
dular parts. 
quadrijugate (kwod-ri-jo'gat or -rij'ij-gat), 
a. [< quadrijug-ous + -ate*.] In bot., pinnate 
with four pairs of leaflets: as, a quadrijugate 
leaf. 
quadrijugOUS (kwod-ri-jo'gus or -rij'ij-gus), o. 
[< L. quadrijugus, belonging to a team of four, 
< quattuor (quadri-), = E. four, + jugum (= 
Gr. fvyoV), a yoke. Cf. quadriga.] Same as 
quadrijugate. 
quadrilaminar (kwod-ri-lain'i-nar), a. [< L. 
quattuor (quadri-), = E. four, + lamina, a thin 
plate : see lamina, laminar.] Same as quadri- 
laminate. 
quadrilaminate (kwod-ri-lam'i-nat), a. [< L. 
quattuor (quadri-), = 'E. four, + lamina, a, thin 
plate: see lamina, laminate.] Having four 
laminse, layers, or plates ; four-layered. 
Quadrilatera (kwod-ri-lat'e-ra), n.pl. [NL., < 
L. quadrilaterals, four-sided: see quadrilateral.] 
In Crustacea, a group of crabs having a quad- 
rate or cordate carapace. Latreille. 
quadrilateral (kwod-ri-lat'e-ral), a. and . [< 
L. quadrilaterus, four-sided, < quattuor (quadri-), 
= E. four, + latus (later-), side, 
flank: see lateral.] I. a. Having 
four sides; composed of four lines. 
Quadrilateral map-projection. See 
projection. 
II. n. 1 . A figure formed of four 
straight lines. In the old geometry the complete 
lines are supposed to terminate at four in- Quadrilateral, 
tersections ; in modern geometry the lines 
are regarded as infinite, and a plane quadrilateral as hav- 
ing six angles. Such a figure has three diagonals or oxen, 
being straight lines through opposite vertices, and three 
centers, which are the intersections of the axes. 
2. Milit., the space inclosed between, and de- 
fended by, four fortresses: as, the Bulgarian 
quadrila teral. The most famous quadrilateral was that 
in northern Italy, inclosed by the fortresses of Peschierft, 
Mantua, Verona, and Legnago. 
Field Marshal Eadetsky . . . had collected under his 
own command all the Austrian forces scattered over the 
Lombardo-Venetian provinces, and had concentrated them 
within the well-nigh impregnable stronghold formed in 
the very heart of these provinces by the fortresses of the 
Quadrilateral. E. Dicey, Victor Emmanuel, p. 85. 
Inscriptible quadrilateral. See insmpUMe. Plane 
quadrilateral, a quadrilateral lying in a plane. Skew 
quadrilateral, a quadrilateral that does not lie in a plane. 
quadrilateralness (kwod-ri-lat'e-ral-nes), n. 
The property of being quadrilateral. 
quadriliteral (kwod-ri-lit'e-ral), a. and n. [< 
L. quattuor (quadri-), = E.four, + littera, litera, 
letter: see literal.] I. a. Consisting of four 
letters, or of only four constant letters or con- 
sonants. 
II. n. A word or a root consisting of four 
letters or containing four consonants. 
admit only five variations, . . . even then a perfect Ara- 
bick dictionary ought to contain fifty thousand words. 
Sir W. Jones, Asiatic Dissertations, I. 126. 
