ostracod

[os-truh-kod]
noun

Origin:
1860–65; < Neo-Latin Ostracoda name of the subclass < Greek ostrakṓdēs, equivalent to óstrak(on) shell, tile (see ostracize) + -ōdēs -ode1

ostracodan [os-truh-kohd-n] , ostracodous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ostracod
Collins
World English Dictionary
ostracod (ˈɒstrəˌkɒd)
 
n
any minute crustacean of the mainly freshwater subclass Ostracoda, in which the body is enclosed in a transparent two-valved carapace
 
[C19: via New Latin from Greek ostrakōdēs having a shell, from ostrakon shell]
 
ostracodan
 
adj
 
ostra'codous
 
adj

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
Encyclopedia Britannica
Encyclopedia

ostracod

any of a widely distributed group of crustaceans resembling mussels. Mussel shrimp differ from most crustaceans in having a very short trunk that has lost its external segmentation, or divisions. Nearly all of the body is encased in a hard covering, or carapace. The 2,000 living species include marine, freshwater, and terrestrial forms

Learn more about ostracod with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
Fragmented shells of freshwater molluscs and an ostracod occur within a marlstone bed.
Additional variation in ostracod species richness was further explained by water and sediment depth.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature