(Zoology)a solitary or colonial sedentary form of a coelenterate such as a sea anemone, typically having a columnar body with the mouth uppermost surrounded by a ring of tentacles. In some species, polyps are a phase in the life cycle which alternates with a medusoid phase (动)水螅型(珊瑚虫),水螅(体)。 比较 medusa
(Medicine)a small growth, usually benign and with a stalk, protruding from a mucous membrane (医)息肉
派生 polypous adjective
(限义项2)
语源
late Middle English (in sense 2): from Old French polipe, from Latin polypus (see polypus). Sense 1 dates from the mid 18th cent