(Il"i*o-) [From Ilium.] A combining form used in anatomy to denote connection with, or relation to,
the ilium; as, ilio-femoral, ilio- lumbar, ilio-psoas, etc.
(Il`i*o*fem"o*ral) a. (Anat.) Pertaining to the ilium and femur; as, iliofemoral ligaments.
(Il`i*o*lum"bar) a. (Anat.) Pertaining to the iliac and lumbar regions; as, the iliolumbar artery.
(Il`i*o*pso"as) n. (Anat.) The great flexor muscle of the hip joint, divisible into two parts, the
iliac and great psoas, often regarded as distinct muscles.
(||Il"i*um) n. [See Ileum.] (Anat.) The dorsal one of the three principal bones comprising either
lateral half of the pelvis; the dorsal or upper part of the hip bone. See Innominate bone, under Innominate.
[Written also ilion, and ileum.]
(Il`ix*an"thin) n. [Ilex the genus including the holly + Gr. yellow.] (Chem.) A yellow dye obtained
from the leaves of the holly.
Of that ilk, denoting that a person's surname and the title of his estate are the same; as, Grant of that
ilk, i.e., Grant of Grant. Jamieson.
(Ilk) a. [Scot. ilk, OE. ilke the same, AS. ilca. Cf. Each.] Same; each; every. [Archaic] Spenser.
(Il"ke) a. [See Ilk.] Same. [Obs.] Chaucer.
(Il*kon", Il*koon") , pron. [See Ilk, and One.] Each one; every one. [Obs.] Chaucer.
(Ill) a. [The regular comparative and superlative are wanting, their places being supplied by worse
and worst from another root.] [OE. ill, ille, Icel. illr; akin to Sw. illa, adv., Dan. ilde, adv.]
1. Contrary to good, in a physical sense; contrary or opposed to advantage, happiness, etc.; bad; evil; unfortunate; disagreeable; unfavorable.
Neither is it ill air only that maketh an ill seat, but ill ways, ill markets, and ill neighbors.Bacon.
There 's some ill planet reigns.Shak.
2. Contrary to good, in a moral sense; evil; wicked; wrong; iniquitious; naughtly; bad; improper.
Of his own body he was ill, and gaveShak.
The clergy ill example.
3. Sick; indisposed; unwell; diseased; disordered; as, ill of a fever.
I am in health, I breathe, and see thee ill.Shak.
4. Not according with rule, fitness, or propriety; incorrect; rude; unpolished; inelegant.
That 's an ill phrase.Shak. Ill at ease, uneasy; uncomfortable; anxious. "I am very ill at ease." Shak. Ill blood, enmity; resentment.
Ill breeding, want of good breeding; rudeness. Ill fame, ill or bad repute; as, a house of ill fame,
a house where lewd persons meet for illicit intercourse. Ill humor, a disagreeable mood; bad temper.
Ill nature, bad disposition or temperament; sullenness; esp., a disposition to cause unhappiness
to others. Ill temper, anger; moroseness; crossness. Ill turn. (a) An unkind act. (b) A slight
attack of illness. [Colloq. U.S.] Ill will, unkindness; enmity; malevolence.
Syn. Bad; evil; wrong; wicked; sick; unwell.