NEO
abbreviation
near-earth object.
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NEO
1 Americanabbreviation
neo-
2
American
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a combining form meaning “new,” “recent,” “revived,” “modified,” used in the formation of compound words.
neo-Darwinism; Neolithic; neoorthodoxy; neophyte.
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Chemistry. a combining form used in the names of isomers having a carbon atom attached to four carbon atoms.
neoarsphenamine.
neo-
British
combining form
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(sometimes capital) new, recent, or a new or modern form or development
neoclassicism
neocolonialism
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(usually capital) the most recent subdivision of a geological period
Neogene
Etymology
Origin of neo-
< Greek, combining form of néos; akin to new
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
However, NASA's NEO Surveyor mission, scheduled to launch in 2027, could help solve the mystery.
From Science Daily • May 14, 2026
He was told his B negative blood-type or NEO blood - was rare and he could help babies in neonatal intensive care.
From BBC • Apr. 1, 2026
He has even ordered a NEO humanoid robo External link t from 1X, but isn’t expecting much.
From Barron's • Nov. 14, 2025
Cheng says he hopes future missions, such as NASA’s NEO Surveyor, set to launch in 2027, may be able to find a larger population of lunar debris still orbiting in our neighborhood.
From Science Magazine • Apr. 19, 2024
All our host Were not so fair a prize for him as I. NEO.
From The Seven Plays in English Verse by Sophocles
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
