polyp

n. 息肉, 水螅虫
【医】 息肉

形容词:polypoid 

pol.yp

n.（名词）
A coelenterate, such as a hydra or coral, having a cylindrical body and an oral opening usually surrounded by tentacles.
水螅型珊瑚虫，水螅虫：一种有柱状身体和通常被触角包围的口部开口的腔肠动物，比如水螅或珊瑚虫
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：一种通常为非恶性的增生或肿瘤，从象鼻子、膀胱或肠这类器官的内层黏膜上突出来

来源：
Middle English polip [nasal tumor]
中古英语 polip [鼻部肿瘤]
from Old French polipe
源自 古法语 polipe
from Latin pôlypus [cuttlefish, nasal tumor]
源自 拉丁语 pôlypus [乌贼，鼻部肿瘤]
from Greek polupous probably by folk etymology from polus [many] * see poly- pous [foot] * see ped-
源自 希腊语 polupous 可能源自 polus的民间词源 [许多] *参见 poly- pous [足，脚] *参见 ped-

【引伸】
pol.ypoid.
adj.（形容词）