[ greg-uh-rahyn, -er-in ]
/ ˈgrɛg əˌraɪn, -ər ɪn /


a type of sporozoan parasite that inhabits the digestive and other cavities of various invertebrates and produces cysts filled with spores.


having the characteristics of or pertaining to a gregarine or gregarines.

Origin of gregarine

1865–70; < New Latin Gregarina name of type, equivalent to Latin gregār(ius) (see gregarious) + -īna -ine1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for gregarine

British Dictionary definitions for gregarine


/ (ˈɡrɛɡəˌriːn, -rɪn) /


any parasitic protozoan of the order Gregarinida, typically occurring in the digestive tract and body cavity of other invertebrates: phylum Apicomplexa (sporozoans)

adjective Also: gregarinian (ˌɡrɛɡəˈrɪnɪən)

of, relating to, or belonging to the Gregarinida

Word Origin for gregarine

C19: from New Latin Gregarīna genus name, from Latin gregārius; see gregarious
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

Medicine definitions for gregarine


[ grĕgə-rīn′ ]


Any of various sporozoan protozoans of the order Gregarinida that are parasitic within the digestive tracts of various invertebrates.


Of or belonging to the order Gregarinida.

Related forms

greg′a•rini•an (-rĭnē-ən) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.