isaac 
^'zak), . [A corrupted form of huyxiirl;, 
q. v.] The hedge-sparrow. HalUwell. 
isabel, isabelle (iz'a-bel), . [< F. isabelle = 
It. Isabella = Pg. isabel (Sp. isabellino, adj.), a 
color so called; < Isabelle, a woman's name. 
Color terms are often taken from personal or 
local names without any particular reason; and 
there is no need to put faith in the stories which 
connect the name with that of various Isabelles 
of history.] A yellowish-gray or grayish-buff 
color; a kind of drab. A mixture by rotating disks 
of j hlack, J bright chrome-yellow, and ^ white gives an 
isabel-yellow. Also Isabella, isabel-yellow. 
Isabella, daughter of Philip II. and wife of the Archduke 
Albert, vowed not to change her linen till Ostend was taken ; 
this siege, unluckily for her comfort, lasted three years; 
and the supposed colour of the archduchess's linen gave 
rise to a fashionable colour, hence called 1'Isabeau, or the 
Isabella; a kind of whitish-yellow-dingy. 
/. D' Israeli, Curios, of Lit., I. 298. 
The colour of the Fennec is a very pale fawn, or isabel 
colour, sometimes being almost of a creamy whiteness. 
7. G. Wood, Pop. Nat. Hist., p. 73. 
isabelite (iz-a-bel'It), n. [< Isabel, a woman's 
name, + -ite?.] A West Indian name of the 
angel-fish, Pomacanthm ciliaris. 
Isabella (iz-a-bers), n. [See isabel.'] Same as 
3192 
lar corolla : < Gr. loos, equal, + avffnf. flower.] A 
monotypic genus of North American plants, of 
the natural order LabiaUe, having a 5-lobed 
regular bell-shaped calyx, and a corolla with a 
bell-shaped border and 5 nearly equal spreading 
lobes. The single species, 1. ccerulewi, the false penny- 
royal, is a low, much-branched annual plant, with nearly 
en " re I""**** lea y? and "P 1 " 11 pale-blue flowers on 
" ' ccure fr &a > e to "'i' 8 and 
Similarly white, but with the ornamental feathers of the 
head, breast, and back of Riusty Isabella color, is the buff- 
hacked cattle-egret. Stand. Nat. Hist., IV. 178. 
If, on being removed therefrom and rinsed in cold water, 
the swatch assumes, when immersed in a solution of ace- 
tate of alumina, a deep yellowish tinge (Isabella colour), 
the oiling is quite what it should be. 
W. Crookes, Dyeing and Calico-printing, p. 324. 
isabella-WOOd (iz-a-bel'a-wud), n. The red bay, 
Persea Carolinensis. 
isabelle, . See isabel. 
isabelline (iz-a-bel'in), a, [= Sp. isabeUino, < 
'NL.isabelliniis; as isabcl(l) + -ine 1 .] Resem- 
bling isabel ; of the hue called isabel. 
The upper plumage of every bird . . . is of one uniform 
isabelline or sand color. 
Caiwn Tristram, Ornith. of N. Africa (in the Ibis). 
Isabelline bear, the Urms imbellinm, a pale variety of 
_the Syrian bear (Ursus syriacus), found in the Himalayas, 
isabel-yellow (iz'a-bel-yel"6), n. Same as isa- 
bel. 
isabnormal (I-sab-nor'mal), a. Same as isoab- 
normal. 
isadelphpus (I-sa-del'fus), a. [< Gr. laof, equal, 
+ <roV/4>oc, brother.] In bot., having the sta- 
mens in the phalan ges or bundles equal in num- 
ber, as some diadelphous flowers. 
(i-sa-go'je), n. [Also isagogue; < L. 
isapostolic (I-sap-os-tol'ik), a. [< Gr. laof, 
equal, + aTTooro/UKOf, apostolic: see apostolic.'] 
Equal to the apostles : an epithet specifically 
given in the calendar of the Greek Church to 
bishops of apostolic consecration (for instance, 
St. Abercius of Hieropolis), holy and eminent 
women of the apostolic company (as St. Mary 
Magdalene and St. Thecla), the first preachers 
of the Christian faith in a country (as St. Nina in 
Georgia), and persons of royal or princely rank 
who have promoted the success of Christianity 
(as St. Constantino and St. Helena). 
Isaria (i-sa'ri-a), n. [NL. (Elias Fries, 1829), 
so called in allusion to likeness of organs ; < Gr. 
iaof, equal.] The typical genus of fungi of the 
natural order Isariacei, They are floccose in appear- 
ance, with an elongated receptacle. They are found on a 
great variety of substances ; some species, as I. pulvcracea 
and /. Sphingum, attack and destroy various insects. (E. 
Microbes (trans.), pp. 48, 49.) From obser- 
ischiopubic 
Kothmund mentions two . . , cases of ischceinia of the 
retina. J. S. Wells, Dis. of Eye, p. 363. 
ischemic, iSChsemic (is-ke'mik), a. [< ischemia 
+ -ic.] Pertaining to or affected with ische- 
mia. 
ischesis (is-ke'sis), . [NL., < Gr. iaxeiv, hold, 
restrain, a form of ex elv , hold, have: see hec- 
tic.'] Suppression or retention of a discharge 
or secretion. Dmiglison. 
ischia, n. Plural of ischium. 
ischiadic (is-ki-ad'ik), a. [= Pg. ischiadico, < L. 
ischiadicus, < Gr. 'textaiusAc, of or relating to the 
hips, having gout in the hips, < ioxiaf (iaxia.6-), 
gout in the hips, sciatica, prop. adj. (so. vocrof, 
disease), < laxiov, the hip-joint, the hips: see 
ischium.] Same as ischiatic. 
ischiagra (is-ki-ag'ra), . [< Gr. laxiov, the hip- 
joint, + aypa, a taking: see podagra, chiragni, 
etc.] In pathol., gout in the hip; ischialgia. 
ischial (is'ki-al), a. [< ischium + -al.] Same 
as isch ia tic. ischial callosity. See callosity. 
ischialgia (is-ki-al'ji-a), 7i. [< Gr. laxiov, hip- 
joint, + a/.} 'of, pain.] In pathol,, pain in the 
region of the ischium ; sciatica. 
ischiatic (is-ki-at'ik), a. [= Pg. ischiatico; 
var. of ischiadic, taken as < Gr. laxiov, hip, + 
-atic 1 . Cf. sciatic, sciatica.'] Of or pertaining 
to the ischium ; sciatic. Also ischiadic, ischial. 
species of Isaria, including /. Sphingum, I. farinom, and 
-* urachnophila, are really only conditions in species of 
other genera. 
Isariacei (i-sa-ri-a'se-i), . pi. [NL., < Isaria 
+ -acei.] A natural order of hyphomycetous 
fungi, or filamentous molds, containing those 
genera in which the fertile threads are com- 
pacted and have deciduous pulverulent spores 
at their free apices. The spellings Imriadeae, 1m- 
**i", liariece, and Imriei have been used by different 
An improper 
, / .,v, lead in, introduce, < f, into, + ayeiv, 
lead: see act] An introduction. The Isagoge 
Of Porphyry, an introduction to the book of Categories 
of Aristotle, written by the Neoplatonist Porphyry in the 
third century A. D. It treats mainly of the five predicables. 
isagogic (1-sa-goj'ik), a. [< L. isagogicus,< Gr. 
etna-fay iK.6$, introductory, < elaayuyt/, introduc- 
tion : see isagoge.] Introductory ; especially, 
introductory to the interpretation of the Bible. 
The formal, introductory or isagogic, studies have a wide 
range, requiring, perhaps more than any other, educated 
faculty and the scientific mind. 
in., LI. 208. 
division, etc., with some variation in its scope. 
isarioid (i-sa'ri-oid), a. [< Isaria + -aid.'] In 
bot., belonging to or resembling the genus Isa- 
ria. 
isathyd(i'sa-thid),. [< isat(in) + hyd(rogen).] 
A substance formed from isatin by its uniting 
with one equivalent of hydrogen. 
isatic (I-sat'ik), a. [< Isatis 1 + -ic.'] Of or per- 
taining to isatin; derived from isatin : as, isatic 
acid (CgHyNOa), an acid formed by the action 
of caustic alkalis upon isatin. 
Isatideae (i-sa-tid'e-e), n. pi. [NL. (A. P. de 
Candolle, 1831), < Isatis 1 (-id-) + -eat.} A tribe 
of plants of the natural order Cruciferas, typified 
by the genus Isatis, characterized by having the 
silique short, indehiscent, inarticulate, often 
crustaceous, winged, and 1-celled and 1-seeded 
or rarely 2-seeded. Also written Isatida;. 
isatin (I'sa-tin), n. [< Isatis 1 + 4&.\ A com- 
pound (CgH 5 NO 2 ) obtained by oxidizing indi- 
go. It forms hyacinth-red or reddish-orange crystals of 
a brilliant luster. Its solutions stain the skin, and give 
it a disagreeable odor. 
Isatis 1 (i'sa-tis), n. [NL., < L. isatis, < Gr. loa- 
ns, an herb with a milky juice used in heal- 
ing wounds, a coloring plant, woad.] A genus 
of plants of the natural order Cruciferte, the 
ostrich. 
ischiatocele (is-ki-at'o-sel), n. 
form of ischiocele. 
ischiocapsular (is"ki-6-kap'su-lar), . [< NL. 
ischium + L. capsula, capsule: see capsule.] 
Ischiatic and capsular: applied to that part of 
the capsular ligament of the hip-joint which is 
connected with the ischium. 
ischiocaudal (is"ki-6-ka'dal), a. and n. [< NL. 
ischium, hip-joint, + L. cauda, tail : see cau- 
dal.] I. . Of or pertaining to the ischium 
and the tail: applied to a muscle connecting 
these parts. 
II. n. A muscle which in some animals passes 
from the ischium to the tail. 
ischiocavernosus (is"ki-6-kav-er-nd'sus), n.; 
pl.ischiocavernosi(-si). [NL. : see ischiocaver- 
nous.] A muscle of the penis, arising chiefly 
from the ischium, and inserted into the cms 
penis. Also called erector penis and erector 
clitoridis. 
ischiocavernous (is"ki-6-kav'er-nus), a. [< 
NL. isehioeavernosux, < ischium + L. cavernosum 
(corpus).'] Pertaining to the is 
the corpus cavernosum of the ] 
Anat. Vert., p. 346. 
ischiocele (is'ki-6-sel), n. [< Gr. laxiov, hip, 
+ Kt/"Ar/, tumor.] In pathol,, a hernia through 
the sciatic notch. Also improperly ischiatocele. 
ischiocerite (is-ki-os'e-rit). n. [< Gr. laxiov, hip- 
joint, + Ktpaf, horn, -F -ite*.] One of the joints 
of the developed antenna of a crustacean, borne 
with the scaphocerite upon the basicerite, and 
bearing the merocerite. See antenna, 1. 
A basicerite, to the outer portion of which a flattened 
plate, . . . here called the scaphocerite, is articulated; 
..-i, ; i ,. to ]tg inner portion an ischwcerite is connected, bear- 
~ww B vev v *-^i*- fe wj i<cs), n. [PI. of isagogic : see 
-ics.] That department of theological study 
which treats of the books forming the canon 
of Scripture, individually and collectively, their 
authorship, the date and place of their compo- 
sition, their contents, style, inspiration, and 
any particular questions connected with them. 
_ Also called Biblical introduction. 
isagoguet, . Same as isagoge. 
Isaianic (i-za-yan'ik), a. [< Isaiah + -an + -ic.] 
Pertaining to Isaiah, a Hebrew prophet and the 
traditional author of the book of Isaiah. 
The question of the Igaianic or non-Isaianic origin of 
the disputed prophecies (especially xl. -Ixvi.) must be de- 
cided on grounds of exegesis alone. 
Encyc. Brit., XIII. 379. 
isandrous (I-san'drus), a, [< Gr. Ivor, equal, + 
avijp (avip-), a male (in mod. bot. a stamen).] In 
bot., having the stamens similar and equal in 
number to the divisions of the corolla. 
isantherous (i-san'ther-us), a. [< Gr. taoc, 
equal, + avOripof, flowery: see anther.] In bot,, 
having the anthers equal. Thomas, Med. Diet 
[Bare.] 
isanthous (i-sau'thus), a. [< Gr. laof, equal 
+ avBof, a flower.] In bot.. having 'regular 
flowers. 
^Q^ 11118 ^t^'thus), . [NL. (F. A. Michaux, 
W), so called in allusion to the nearly regu- 
cauline sagittate in outline. About 30 (or according to 
80me autnors > 6 ) species are known. They are natives of 
, north ? and mid( e Asia, 
ced 
, but it is now cultivated in few localities. I.indi- 
is stm cultivated " a dye-plant in the north of 
/-/ - * N r , ,, TT 
(i sa-tis), n. [< NL. watts, a specific 
' Jf ' ^ estowed b ^ J ' , G - Gmeli 
' ^ ? / m / , vernacular name '] 
r arctl fox> Vttlpes ^OP**- 
- . , .-. Nat. Hist (2d ed.), I. 268. 
Iscariotical (is-kar-i-ot'i-kal), a. [< Iscariot 
(see del) + 4c-al] Of or pertaining to Judas 
Iscariot, that one of Christ's twelve apostles 
who betrayed him ; Judas-like ; treacherous. 
In the Evangelical and reformed use of this sacred 
censure, no such prostitution, no such Iscarintical drifts 
are to be doubted, as that Spiritual doom and sentence 
should invade worldly possession. 
Milton, Reformation in Eng. , ii. 
ISCht, ischet, v . i. See ish. 
ischsemia, ischaemic. See ischemia, ischemic. 
ischemia, ischaemia (is-ke'mi-a), . [NL., < 
Gr. iaxaiftoe, stanching blood, styptic, < laxeiv, 
hold, + a'ifia, blood.] In pathol,, local anemia 
produced by vasoconstriction or by other local 
obstacles to the arterial flow. 
Invert., p. 278. 
ischiococcygeal (is'ki-6-kok-sij'e-al), a. [< is- 
chiococcygeus + -al.] Pertaining "both to the 
ischium and to the coccyx; ischiocaudal: as, 
an ischiococcygeal muscle. 
ischiococcygeilS (is"ki-6-kok-sij'e-us), .; pi. 
ischiococcygei (-i). [NL., < ischium + coccy- 
geus.] A muscle which in some animals con- 
_ nects the ischium and the coccyx. 
ischiofibular (is'ki-o-fib'u-lar), a. [< ischium 
+ fibula + -ar3.] Of or pertaining to the is- 
chium and the fibula, or connecting these bones, 
as the long head of the human bicipitosus or 
biceps femoris muscle. 
ischio-iliac (is"ki-6-il'i-ak), a. [< ischium + 
ilium + -arc.] Pertaining both to the ischium 
and to the ilium. 
ischion (is'ki-on), n. [NL.] Same as ischium. 
ischippodite (is-ki-op'o-dit), n. [< Gr. laxiov, 
hip-joint, + ivoiif (xoti-), =E./oo,+ -ite%.] The 
third-joint of a developed endopodite, between 
the basipodite and the meropodite. Milne-EA- 
_wards; Huxley. See cut under endopodite. 
ischiopubic (is"ki-6-pu'bik), a. [< ischium + 
fitbis + -ic.] 1. Of or pertaining both to the 
ischium and to the pubis. 
When the two ventral pieces are united at the ischio- 
iis, as they are in the Marsupialia, many Bo- 
is elon- 
p. 486. 
