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[sahy-fuh-nuh-fawr, -fohr, sahy-fon-uh-] /ˈsaɪ fə nəˌfɔr, -ˌfoʊr, saɪˈfɒn ə-/
any pelagic hydrozoan of the order Siphonophora, being a floating or swimming colony composed of polyps.
Origin of siphonophore
1835-45; < New Latin Siphonophora name of the order < Greek siphōnophór(os) tube-carrying (equivalent to siphōno- siphono- + -phóros -phore) + -a neuter plural noun suffix
Related forms
[sahy-fuh-nof-er-uh s] /ˌsaɪ fəˈnɒf ər əs/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for siphonophore


/ˈsaɪfənəˌfɔː; saɪˈfɒnə-/
any marine colonial hydrozoan of the order Siphonophora, including the Portuguese man-of-war
Derived Forms
siphonophorous (ˌsaɪfəˈnɒfərəs) adjective
Word Origin
C19: from New Latin siphonophora, from Greek siphōnophoros tube-bearing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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siphonophore in Science
  (sī-fŏn'ə-fôr', sī'fə-nə-)   
Any of various transparent, often subtly colored marine cnidarians of the order Siphonophora, consisting of a delicate floating or swimming colony of polyplike and medusalike individuals. Siphonophores can reach lengths of 40 m (131 ft), making them longer than blue whales. The Portuguese man-of-war is a siphonophore.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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