- a combining form meaning “mountain,” used in the formation of compound words: orography.
Origin of oro-1
< Greek, combining form of óros
- a combining form meaning “mouth,” used in the formation of compound words: oropharynx.
Origin of oro-2
combining form representing Latin ōs, stem ōr-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for oro
Even then they were workers in metal and they knew of Oro and Grah.
"Oro is pulling more strongly than Grah," Dean said, and smiled.
Oro is as heavy in its upward falling as Grah is in its downward.
Oro was his name, and he may be compared with the Bacchus of the ancients.In the South Seas
Robert Louis Stevenson
The hole in the top and the door can be closed as in the oro.Farmers' Bulletin 1889 - Fireplaces and Chimneys
Arthur H. Senner
- mountainorogeny; orography
from Greek oros
- oral; mouthoromaxillary
from Latin, from ōs
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 oro
word-forming element meaning "mountain," from Greek oros "mountain" (see oread).
Online Etymology Dictionary, © 2010 Douglas Harper
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.