| Acanth | n. Same as Acanthus. [ 1913 Webster ] |
| Acantha | ‖n. [ Gr. &unr_; thorn, fr. &unr_; point. See Acute. ] |
| Acanthaceous | a. |
| Acanthine | a. [ L. acanthinus, Gr. &unr_;, thorny, fr. &unr_;. See Acanthus. ] Of, pertaining to, or resembling, the plant acanthus. [ 1913 Webster ] |
| Acanthocarpous | a. [ Gr. &unr_; thorn + &unr_; fruit. ] (Bot.) Having the fruit covered with spines. [ 1913 Webster ] |
| Acanthocephala | ‖n. pl. [ NL., from Gr. &unr_; a spine, thorn + &unr_; head. ] (Zool.) A group of intestinal worms, having the proboscis armed with recurved spines. [ 1913 Webster ] |
| Acanthocephalous | a. (Zool.) Having a spiny head, as one of the Acanthocephala. [ 1913 Webster ] |
| Acanthophis | n. |
| Acanthophorous | a. [ Gr. &unr_;, fr. &unr_; spine + |
| Acanthopodious | a. [ Gr. &unr_; thorn + &unr_;, &unr_;, foot. ] (Bot.) Having spinous petioles. [ 1913 Webster ] |
| acanthaceae | (n) widely distributed herbs and shrubs and trees; sometimes placed in the order Scrophulariales, Syn. family Acanthaceae, acanthus family |
| acanthion | (n) the craniometric point at the anterior extremity of the intermaxillary suture |
| acanthisitta | (n) a genus of Xenicidae, Syn. genus Acanthisitta |
| acanthocephala | (n) phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms, Syn. phylum Acanthocephala |
| acanthocephalan | (n) any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines, Syn. spiny-headed worm |
| acanthocereus | (n) mostly trailing cacti having nocturnal white flowers; tropical America and Caribbean region, Syn. genus Acanthocereus |
| acanthocybium | (n) wahoos, Syn. genus Acanthocybium |
| acanthocyte | (n) an abnormal red blood cell that has thorny projections of protoplasm |
| acanthocytosis | (n) the presence of acanthocytes in the blood stream (as in abetalipoproteinemia) |
| acanthoid | (adj) shaped like a spine or thorn, Syn. spinous, acanthous |