单词 | peristome |
释义 | Word Frequency peristome(ˈpɛrɪˌstəʊm) noun 1. a fringe of pointed teeth surrounding the opening of a moss capsule 2. any of various parts surrounding the mouth of invertebrates, such as echinoderms and earthworms, and of protozoans Derived forms peristomal (ˌperiˈstomal) or peristomial (ˌperiˈstomial) adjective Word origin C18: from New Latin peristoma, from peri- + Greek stoma mouth |
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