1. small tubular solitary freshwater hydrozoan polyp. 
   淡水中独居的管状小型水螅。
2. colonial coelenterates having the polyp phase dominant. 
   水螅阶段为主要生命形式的移居的腔肠动物。
3. A polyp with a pinnate form; pinnate leaves. 
   羽状珊瑚；羽状叶
4. The asexual polyp in the life cycle of a hydrozoan. 
   水螅虫类生命循环中的无性生殖水螅虫
5. The stalklike base to which a polyp or tumor is attached. 
   肉茎息肉或肿瘤所附着的茎状病基

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