n.珊瑚虫（水螅型），息肉； 变形： 复数：polyps 英英释义： polyp[ 'pɔlip ]n.a small vascular growth on the surface of a mucous membrane同义词：polypusone of two forms that coelenterates take e.g. a hydra or coral: usually sedentary and has a hollow cylindrical body usually with a ri