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neo

 - 8 dictionary results

NEO

 
near-earth object.

neo-

 
1.
a combining form meaning “new,” “recent,” “revived,” “modified,” used in the formation of compound words: neo-Darwinism; Neolithic; neoorthodoxy; neophyte.
2.
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:
< Gk, comb. form of néos; akin to new

near-earth object

  [neer-urth]
–nounAstronomy.
a comet or asteroid pushed by the gravitational attraction of nearby planets into an orbit that allows it to enter the earth's orbit and thereby pose a danger of collision. Abbreviation: NEO
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
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Main Entry:  NEO
Part of Speech:  n
Definition:  See near-Earth object
Dictionary.com's 21st Century Lexicon
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Word Origin & History

neo-
Gk. neo-, comb. form of neos "new," from PIE base newos (see new). Used in a seemingly endless number of adjectives and nouns, mostly coined since c.1880.
Online Etymology Dictionary, © 2010 Douglas Harper
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Medical Dictionary

neo- pref.

  1. New; recent: neonatal.

  2. New and different: Neo-Freudian.

  3. New and abnormal: neoplasm.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
near-Earth object   (nîr'ûrth')  Pronunciation Key 
A comet or asteroid with an orbit or trajectory that comes near Earth's orbit, often drawn into such a path by the gravitational effect of the Earth and other planets. While there is currently no known near-Earth object on a collision course with Earth, collisions with such objects have taken place in the past and may be associated with mass extinctions such as those that took place at the end of the Permian and Cretaceous Periods.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Abbreviations & Acronyms
neo
newborn (from "neonate")
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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