| 单词 | polyp |
| 释义 | polyp —polypous, adj. /pol"ip/, n. 1. Zool. a. a sedentary type of animal form characterized by a more or less fixed base, columnar body, and free end with mouth and tentacles, esp. as applied to coelenterates. b. an individual zooid of a compound or colonial organism. 2. Pathol. a projecting growth from a mucous surface, as of the nose, being either a tumor or a hypertrophy of the mucous membrane. [1350-1400; ME polip, short for polipus nasal tumor (later, also cephalopod, now obs.) < ML, L polypus < dial. Gk poulýpous octopus, nasal tumor (Attic polýpous, gen. polýpodos; see POLY-, -POD)] |
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