(||Hyp`o*gas"tri*um) n. [NL., fr. Gr. under + belly.] (Anat.) The lower part of the abdomen.
(Hyp`o*ge"an) a. [Pref. hypo- + Gr. earth.] (Bot.) Hypogeous. [Written also hypogæan.]
(Hyp"o*gene) a. [Pref. hypo- + the root of Gr. to be born: cf. F. hypogène.] (Geol.) Formed
or crystallized at depths beneath the earth's surface; said of granite, gneiss, and other rocks, whose
crystallization is believed of have taken place beneath a great thickness of overlying rocks. Opposed to
(Hyp`o*ge"ous) a. [See Hypogean.] (Bot.) Growing under ground; remaining under ground; ripening
its fruit under ground. [Written also hypogæous.]
(||Hyp`o*ge"um) n.; pl. Hypogea [L., fr. Gr. subterranean; under + the earth.] (Anc. Arch.)
The subterraneous portion of a building, as in amphitheaters, for the service of the games; also, subterranean
galleries, as the catacombs.
(Hyp`o*glos"sal) a. [Pref. hypo- + Gr. the tongue.] (Anat.) Under the tongue; applied
esp., in the higher vertebrates, to the twelfth or last pair of cranial nerves, which are distributed to the
base of the tongue. n. One of the hypoglossal nerves.
(Hy*pog"na*tous) a. [Pref. hypo- + Gr. the jaw.] (Zoöl.) Having the maxilla, or lower
jaw, longer than the upper, as in the skimmer.
(Hyp"o*gyn) n. (Bot.) An hypogynous plant.
(Hy*pog"y*nous) a. [Pref. hypo- + Gr. woman, female: cf. F. hypogyne.] (Bot.) Inserted
below the pistil or pistils; said of sepals, petals, and stamens; having the sepals, petals, and stamens
inserted below the pistil; said of a flower or a plant. Gray.
(Hy`po*hy"al) a. [Pref. hypo- + Greek letter .] (Anat.) Pertaining to one or more small elements
in the hyoidean arch of fishes, between the caratohyal and urohyal. n. One of the hypohyal bones or
(Hy`po*nas"tic) a. [Pref. hypo- + Gr. pressed close.] (Bot.) Exhibiting a downward convexity
caused by unequal growth. Cf. Epinastic.
(Hy`po*nas"ty) n. (Bot.) Downward convexity, or convexity of the inferior surface.
(Hy`po*ni"trite) n. (Chem.) A salt of hyponitrous acid.