follow Dictionary.com

Stories We Like: Novels For Language Lovers

achondrite

[ey-kon-drahyt] /eɪˈkɒn draɪt/
noun
1.
a meteorite containing no chondrules.
Origin
1900-1905
1900-05; a-6 + chondrite
Related forms
achondritic
[ey-kon-drit-ik] /ˌeɪ kɒnˈdrɪt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for achondritic

achondrite

/eɪˈkɒndraɪt/
noun
1.
a rare stony meteorite that consists mainly of silicate minerals and has the texture of igneous rock but contains no chondrules Compare chondrite
Derived Forms
achondritic (ˌeɪkɒnˈdrɪtɪk) adjective
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
Cite This Source
achondritic in Science
achondrite
  (ā-kŏn'drīt')   
A stony meteorite that does not contain chondrules.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for achondritic

achondrite

any stony meteorite containing no chondrules (small, roughly spherical objects that formed in the solar nebula). The only exclusions are carbonaceous chondrites of the CI group, which, though they are clearly chondrites, are so heavily altered by water that any evidence for their having contained chondrules is lost. Achondrites, constituting about 4 percent of the known meteorites, are similar in appearance to terrestrial igneous rocks that have a low silica content, such as basalts, peridotites, and pyroxenites. Most formed by various melting and crystallization processes within asteroids. The majority of achondrites belong to one of the following groups: acapulcoites, angrites, aubrites, chassignites, diogenites, eucrites, howardites, lodranites, nakhlites, shergottites, and ureilites. The shergottites, nakhlites, and chassignites almost certainly came from Mars. In addition, a small group of achondrites are believed to be derived from the Moon

Learn more about achondrite with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for achondrite

Few English speakers likely know this word

Word Value for achondritic

19
0
Scrabble Words With Friends

Nearby words for achondritic