Also especially before a vowel, gastr-.

Origin of gastro-

< Greek, combining form of gastḗr Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for gastro

Historical Examples of gastro

British Dictionary definitions for gastro


often before a vowel gastr-

combining form
  1. stomachgastroenteritis; gastritis

Word Origin for gastro-

from Greek gastēr
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

Word Origin and History for gastro


scientific word-forming element meaning "stomach," before vowels gastr-, from Greek gastro-, comb. form of gaster (genitive gastros) "belly, paunch" (see gastric).

Online Etymology Dictionary, © 2010 Douglas Harper

gastro in Medicine


  1. Stomach; gastric:gastritis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.