jellyfish

[jel-ee-fish]
noun, plural (especially collectively) jellyfish (especially referring to two or more kinds or species) jellyfishes.
1.
any of various marine coelenterates of a soft, gelatinous structure, especially one with an umbrellalike body and long, trailing tentacles; medusa.
2.
Informal. a person without strong resolve or stamina; an indecisive or weak person.

Origin:
1700–10; 1910–15 for def 2; jelly + fish

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To jellyfish
Collins
World English Dictionary
jellyfish (ˈdʒɛlɪˌfɪʃ)
 
n , pl -fish, -fishes
1.  any marine medusoid coelenterate of the class Scyphozoa, having a gelatinous umbrella-shaped body with trailing tentacles
2.  any other medusoid coelenterate
3.  informal a weak indecisive person

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

jellyfish jel·ly·fish (jěl'ē-fĭsh')
n. pl jellyfish or jel·ly·fish·es

  1. Any of numerous marine coelenterates of the class Scyphozoa, some poisonous species of which notably the Portuguese man-of-war, produce a toxin that can be injected into the skin by nematocysts on the tentacles, causing linear wheals.

  2. Any of various similar or related coelenterates.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
Set against the sea, he was as inconsequential as a jellyfish.
Jellyfish are common visitors to many beaches, so teach kids to keep their eyes
  peeled for these stinging animals.
Their nets are trapping jellyfish: giant, gelatinous, wobbly and worthless.
In this case, to prove the point, the gene they introduced was for green
  fluorescent protein-a molecule derived from jellyfish.
Images for jellyfish
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature