名詞 polyp:

1. a small vascular growth on the surface of a mucous membrane
   同義詞：polypus
2. one of two forms that coelenterates take e.g. a hydra or coral: usually sedentary and has a hollow cylindrical body usually with a ring of tentacles around the mouth

1. Coral is formed by certain types of polyp.
   珊瑚是由某些水螅體構(gòu)成的。

pol.yp

n.（名詞）
A coelenterate, such as a hydra or coral, having a cylindrical body and an oral opening usually surrounded by tentacles.
水螅型珊瑚蟲，水螅蟲：一種有柱狀身體和通常被觸角包圍的口部開口的腔腸動物，比如水?；蛏汉飨x
A usually nonmalignant growth or tumor protruding from the mucous lining of an organ such as the nose, bladder, or intestine, often causing obstruction.
息肉：一種通常為非惡性的增生或腫瘤，從象鼻子、膀胱或腸這類器官的內(nèi)層黏膜上突出來

來源：
Middle English polip [nasal tumor]
中古英語 polip [鼻部腫瘤]
from Old French polipe
源自 古法語 polipe
from Latin pôlypus [cuttlefish, nasal tumor]
源自 拉丁語 pôlypus [烏賊，鼻部腫瘤]
from Greek polupous probably by folk etymology from polus [many] * see poly- pous [foot] * see ped-
源自 希臘語 polupous 可能源自 polus的民間詞源 [許多] *參見 poly- pous [足，腳] *參見 ped-

【引伸】
pol.ypoid.
adj.（形容詞）