a. [ Pref. anti- + Gr. "e`lmins, -inqos, worm, esp. a tapeworm, or mawworm. See also helminth] (Med.) capable of expelling or destroying parasitic worms. -- n. An anthelmintic remedy.[Written also anthelminthic.] Syn. -- helminthic, parasiticidal [1913 Webster WordNet 1.5 +PJC]