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 (sī-fŏn′ə-fôr′, sī′fə-nə-)
Any of various transparent, often subtly colored marine hydrozoans of the order Siphonophora, consisting of a delicate floating or swimming colony of specialized zooids and including the Portuguese man-of-war.

[From New Latin Sīphōnophora, order name : Greek sīphō, tube + Greek -phora, neuter pl. of -phoros, -phore.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈsaɪfənəˌfɔː; saɪˈfɒnə-)
(Animals) any marine colonial hydrozoan of the order Siphonophora, including the Portuguese man-of-war
[C19: from New Latin siphonophora, from Greek siphōnophoros tube-bearing]
siphonophorous adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsaɪ fə nəˌfɔr, -ˌfoʊr, saɪˈfɒn ə-)

a floating or swimming marine hydrozoan, of the order Siphonophora, that is composed of polyps.
[1835–45; < New Latin Siphonophora < Greek, neuter pl. of siphōnophóros tube-carrying]
si`pho•noph′o•rous (-ˈnɒf ər əs) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.siphonophore - a floating or swimming oceanic colony of polyps often transparent or showily colored
hydroid, hydrozoan - colonial coelenterates having the polyp phase dominant
order Siphonophora, Siphonophora - marine colonial hydrozoans
nanomia - small creatures resembling pieces of fuzzy rope; each with a cluster of swimming bells serving as the head and long elastic tentacles for drawing in prey
jellyfish, Portuguese man-of-war, man-of-war - large siphonophore having a bladderlike float and stinging tentacles
praya - colonial siphonophore of up to 130 ft long
apolemia - large siphonophore of up to 50 ft long
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The Portuguese Man O'War is often called a jellyfish but is actually a species of siphonophore, a group of animals that are closely related to jellyfish.
The bright blue and purple animals are a species of siphonophore - a group of animals related to jellyfish - and have a painful sting.
The siphonophore may look like a lone jellyfish, but is made up of a group of individual organisms that could not survive on their own.
With distinctive transparent bodies, the creature is often thought to be a jellyfish, but is actually a siphonophore - a colony of tiny specialised polyps and medusoids.
With distinctive transparent bodies (above), the creature is often thought to be a jellyfish, but is actually a siphonophore - a colony of tiny specialised polyps and medusoids.
After all, how many parents knew what a siphonophore or a yeti crab was at age three?
Shoals of luminous creatures swim by, including a group of angler fish, some yeti crabs and an enormous siphonophore.
Caption: Siphonophore Physophora hydrostatica, hula skirt siphonophore
Date July 5 Zooplankton June 6 June 50-0 m 80-0 m July 19 23 Silicoflagellates 1 Medusa Aglanntha 4 1 0 9 9 digitale Siphonophore 0 9 Polychaete larvae 1 0 143 154 Calanus glacialis 15 35 290 341 18 Calanus hyperbureus 25 29 7 Pseudocalanus spp.
On the other hand, no chemotactic cross-reactivity exists in the siphonophore species examined, for which contact with seawater in the absence of attractants is sufficient to activate sperm motility (Cosson, 1990).
(34.) Gea Piroja B (1934) A thesis on a contribution to study of the macroplankton of the Bombay harbor with detailed notes on Hydromedusae, Siphonophore, Sagittae and Stomatopod larvae.
Among the most eye-catching was the siphonophore, the world's longest animal that can extend for up to 150ft, bristling with poisonous tentacles.