[sahy-fuh-nuh-fawr, -fohr, sahy-fon-uh-]
- any pelagic hydrozoan of the order Siphonophora, being a floating or swimming colony composed of polyps.
Origin of siphonophore
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any marine colonial hydrozoan of the order Siphonophora, including the Portuguese man-of-war
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
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.