{ Is"a*bel (?), n., Is"a*bel col"or (?). } [F. isabelle.] See Isabella.
{ Is`a*bel"la (?), n., Is`a*bel"la col"or (?) }. [Said to be named from
the Spanish princess Isabella, daughter of king Philip II., in allusion
to the color assumed by her shift, which she wore without change from
1601 to 1604, in consequence of a vow made by her.] A brownish yellow
color.
Is`a*bel"la grape` (?). (Bot.) A favorite sweet American grape of a
purple color. See Fox grape, under Fox.
Is`a*bel"la moth` (?; 115). (Zoöl.) A common American moth (Pyrrharctia
isabella), of an isabella color. The larva, called woolly bear and
hedgehog caterpillar, is densely covered with hairs, which are black at
each end of the body, and red in the middle part.
Is`a*bel"line (?), a. Of an isabel or isabella color.
Is*ag"e*lous (s*g"*ls), a. [Is- + Gr. a`gelos information.] Containing
the same information; as, isagelous sentences. "The coded message and
the original, though appearing entirely unlike, are completely
isagelous." Bacon "The complementary strands have isagelous sequences."
J. D. Watson. -- Is"a*gel n. One of two or more objects containing the
same information.
I"sa*goge (?), n. [L., fr. Fr. &?;, fr. &?; to introduce; &?; into +
&?; to lead.] An introduction. [Obs.] Harris.
{ I"sa*gog"ic (?), I"sa*gog"ic*al (?), } a. [L. isagogicus, Gr. &?;.]
Introductory; especially, introductory to the study of theology.
I"sa*gog"ics (?), n. (Theol.) That part of theological science directly
preliminary to actual exegesis, or interpretation of the Scriptures.
I"sa*gon ("s*gn), n. [Gr. 'i`sos equal + gwni`a angle: cf. F. isagone,
a.] (Math.) A figure or polygon whose angles are equal.
Is*ap`os*tol"ic (?), a. [Gr. &?;.] Having equal, or almost equal,
authority with the apostles of their teachings.
{ I*sat"ic (?), I`sa*tin"ic (?), } a. (Chem.) Pertaining to, or derived
from, isatin; as, isatic acid, which is also called trioxindol.
I"sa*tide (?), n. (Chem.) A white crystalline substance obtained by the
partial reduction of isatin. [Written also isatyde.]
I"sa*tin (?), n. [See Isatis.] (Chem.) An orange-red crystalline
substance, C8H5NO2, obtained by the oxidation of indigo blue. It is
also produced from certain derivatives of benzoic acid, and is one
important source of artificial indigo. [Written also, less properly,
isatine.]
||I"sa*tis (?; 277), n. [L., a kind of plant, Gr. &?; woad.] (Bot.) A
||genus of herbs, some species of which, especially the Isatis
||tinctoria, yield a blue dye similar to indigo; woad.
||
I*sat"o*gen (?), n. [Isatin + -gen.] (Chem.) A complex nitrogenous
radical, C8H4NO2, regarded as the essential residue of a series of
compounds, related to isatin, which easily pass by reduction to indigo
blue. -- I*sat`o*gen"ic (#), a.
I`sa*trop"ic (?), a. [Is- + atropine.] (Chem.) Pertaining to, or
designating, an acid obtained from atropine, and isomeric with cinnamic
acid.
Is"chi*ac (s"k*k), a. (Anat.) See Ischial.
Is`chi*ad"ic (s`k*d"k), a. [L. ischiadicus, Gr. 'ischiadoko`s, fr.
'ischi`on the hip joint, hip or loin. Cf. Sciatic.] (Anat.) Ischial.
[R.]
Ischiadic passion or disease (Med.), a rheumatic or neuralgic affection
of some part about the hip joint; -- called also sciatica.
Is"chi*al (s"k*al), a. (Anat.) Of or pertaining to the ischium or hip;
ischiac; ischiadic; ischiatic.
Ischial callosity (Zoöl.), one of the patches of thickened, hairless,
and often bright-colored skin, on the buttocks of many apes, as the
drill.
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Is`chi*at"ic (s`k*d"k), a. (Anat.) Same as Ischial.
Is`chi*o*cap"su*lar (?; 135) a. [Ischium + capsular.] (Anat.) Of or
pertaining to the ischium and the capsule of the hip joint; as, the
ischiocapsular ligament.
Is`chi*o*ce"rite (?), n. [Gr. 'ischi`on the hip + ke`ras a horn.]
(Zoöl.) The third joint or the antennæ of the Crustacea.
{ ||Is"chi*on (?), ||Is"chi*um (?), } n. [L., Gr. 'ischi`on.] 1.
(Anat.) The ventral and posterior of the three principal bones
composing either half of the pelvis; seat bone; the huckle bone.