(definition) by Webster 1913 Wed Dec 22 1999 at 3:09:35

Si`pho*noph"o*ra (?), n. pl. [NL., fr. Gr. a siphon + to bear.] Zool.

An order of pelagic Hydrozoa including species which form complex free-swimming communities composed of numerous zooids of various kinds, some of which act as floats or as swimming organs, others as feeding or nutritive zooids, and others as reproductive zooids. See Illust. under Physalia, and Porpita.

 

© Webster 1913.

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