A class of → stony meteorites that lack
→ chondrules. They are made of rock that has crystallized
from a molten state. Achondrites are relatively rare, accounting for about 8% of
all meteorite falls.
Achondrite, from Gk. prefix a- (an- before stems
beginning with a vowel or h) "not, without, lacking" + Gk.
chondrite, from chondr-, from chondros "grain,"
+ affix -ite.
© 2005-2020 by M. Heydari-Malayeri