1) Like a hydra 
• (a.) Of the nature of a polypus; having many feet or roots, like the polypus; affected with polypus.
Pertaining to, manifesting the gross features of, or characterised by the presence of a polyp or polyps. ... (05 Mar 2000) ... 
(pol´ĭ-pәs) pertaining to or like a polyp.
Pol'y·pous adjective [ Confer French polypeux . See Polyp .] Of the nature of a polypus; having many feet or roots, like the polypus; affected with polypus. 
Type: Term Pronunciation: pol′i-pŭs Definitions: 1. Pertaining to, manifesting the gross features of, or characterized by the presence of a polyp or polyps.