‖n. [ NL., fr. Gr. "i`ppos horse + &unr_; to feed.] (Zool.) A genus of dipterous insects including the horsefly or horse tick. -- Hip`po*bos"can a. [ 1913 Webster ]

n. A natural family of winged or wingless dipterans: louse flies.
Syn. -- family Hippoboscidae. [ WordNet 1.5 ]

n. [ Pref. hypo- + -blast. ] (Biol.) The inner or lower layer of the blastoderm; -- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm. [ 1913 Webster ]

a. (Biol.) Relating to, or connected with, the hypoblast; as, the hypoic sac. [ 1913 Webster ]

n. [ Gr. &unr_; a throwing under, a suggesting; &unr_; under + &unr_; to throw. ] (Rhet.) A figure in which several things are mentioned that seem to make against the argument, or in favor of the opposite side, each of them being refuted in order. [ 1913 Webster ]

a. [ Pref. hypo- + branchial. ] (Anat.) Pertaining to the segment between the basibranchial and the ceratobranchial in a branchial arch. -- n. A hypobranchial bone or cartilage.

n. (Zool.) One of the Marsipobranchia. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. &unr_; a pouch + &unr_; a gill. ] (Zool.) A class of Vertebrata, lower than fishes, characterized by their purselike gill cavities, cartilaginous skeletons, absence of limbs, and a suckerlike mouth destitute of jaws. It includes the lampreys and hagfishes. See Cyclostoma, and Lamprey. Called also Marsipobranchiata, and Marsipobranchii. [ 1913 Webster ]

{ ‖ } n. [ L. opobalsamum, Gr. &unr_;; &unr_; vegetable juice + &unr_; balsam. ] (Med.) The old name of the aromatic resinous juice of the Balsamodendron opobalsamum, now commonly called balm of Gilead. See under Balm. [ 1913 Webster ]