SIPHONOPHORE Meaning of SIPHONOPHORE in English n. any usu. translucent marine hydrozoan of the order Siphonophora, e.g. the Portuguese man-of-war. [ Gk siphono- (as SIPHON, -PHORE) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012