jellyfish


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jel·ly·fish

(jel'ē-fish),
Marine coelenterates (class Hydrozoa) including some poisonous species, notably Physalia, the Portuguese man-of-war; toxin is injected into the skin by nematocysts on the tentacles, causing linear wheals.
Synonym(s): jelly (2)
Farlex Partner Medical Dictionary © Farlex 2012

jellyfish

(jĕl′ē-fĭsh′)
n. pl. jellyfish or jelly·fishes
a. Any of numerous usually free-swimming marine cnidarians of the class Scyphozoa, characteristically having a gelatinous, tentacled, often bell-shaped medusa stage as the dominant phase of its life cycle. Also called true jellyfish.
b. Any of various similar or related cnidarians.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

jel·ly·fish

(jel'ē-fish)
Marine coelenterates, including some poisonous species; toxin is injected into the skin by nematocysts on the tentacles, causing linear wheals.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

jellyfish

  1. any large medusa of the class Scyphozoa.
  2. the medusoid stages of any coelenterate.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
"We were completely blown away by the size of the jellyfish and the amount spread out along the beach.
The post Larnaca beaches declared free from jellyfish appeared first on Cyprus Mail .
It is known for fish to use jellyfish for feeding, protection, and movement.
"I know barrel jellyfish get really big in size but I have never seen anything like it before!"
Jellyfish tend to travel in groups, called blooms, and sometimes rough winds, swells and currents send them all to shore at once.
As familiesdescended on the beachto soak up the summer sun, large groups of jellyfish could be seen randomly washed up in the sea water.
They are thought to be barrel jellyfish, which are the biggest and most common jellyfish spotted around Gower.
Last month beachgoers were shocked to find a jellyfish the size of a dustbin lid washed up on a Perranporth Beach in Cornwall.
Mayor Josephine Alcantara-Cruz, in an advisory on Friday, said minors and those with 'compromised health conditions' would not be allowed to snorkel in the waters of Donsol, which is famous for whale sharks, locally known as 'butanding,' to avoid injuries from Chironex fleckeri, a venomous species of box jellyfish.
In an advisory, the Municipal Environment and Natural Resources Office and Municipal Disaster Risk Reduction Office of Malay, Aklan said that blue bottle jellyfish have been spotted in the eastern coast of the island and along Puka Beach.
The government ordered the famed Ongeim'l Tketau Jellyfish Lake closed to swimmers in 2016 because of dwindling numbers of the unique creature - blamed on warming waters although with some suspicion sunscreen on bathers may also have contributed.