o-

Chemistry.

an abridgment of ortho-.

Words nearby o-

o'kelly, o'neill, o'neill, eugene, o'toole, o, o, o-, o-o, o-ring, o., o. henry, o.a.s.i.

Definition for o- (2 of 3)

o-²

variant of ob- before m: omission.

Definition for o- (3 of 3)

o-³

variant of oo-: oidium.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for o-

prefix

short for ortho- (def. 4)

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

Medical definitions for o-

abbr.

ortho- (often italic)