near-earth object.


a combining form meaning “new,” “recent,” “revived,” “modified,” used in the formation of compound words: neo-Darwinism; Neolithic; neoorthodoxy; neophyte.
Chemistry. a combining form used in the names of isomers having a carbon atom attached to four carbon atoms: neoarsphenamine.
Also especially before a vowel, ne-.

Origin of neo-

< Greek, combining form of néos; akin to new Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for neo

Contemporary Examples of neo

Historical Examples of neo

  • It was in the Neo valley that the supreme efforts of the earthquake were manifested.

  • Remembering Neo's suggestion, I took also two other bottles of rum.

  • Hypatia started, as at a new thought, and confessed—as every Neo—Platonist would have done—that she had never done so.


    Charles Kingsley

  • A few miles after entering the Neo valley, the throw of the fault reaches its maximum at Midori.

  • “He got litt'ee broomee, an' sweep paint out litt'ee pipe on thing make ship's sails,” Neo explained.

British Dictionary definitions for neo


sometimes before a vowel ne-

combining form

(sometimes capital) new, recent, or a new or modern form or developmentneoclassicism; neocolonialism
(usually capital) the most recent subdivision of a geological periodNeogene

Word Origin for neo-

from Greek neos new
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 neo


word-forming element meaning "new, recent," used in a seemingly endless number of adjectives and nouns, mostly coined since c.1880, from Greek neo-, comb. form of neos "new, young, youthful; fresh, strange; lately, just now," from PIE root *newo- (see new).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for neo



New; recent:neonatal.
New and different:Neo-Freudian.
New and abnormal:neoplasm.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.