Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
mola (2)
molal
molality
molar (1)
molar (2)
molar (3)
molar mass
molar tooth
molasses
Mold
mold (1)
mold (2)
mold (3)
Moldavia
moldboard
molder (1)
molder (2)
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

molecule

mol·e·cule [ móllə kyl ] (plural mol·e·cules)


noun 
Definition:
 
1. smallest part of chemical compound: the smallest physical unit of a substance that can exist independently, consisting of one or more atoms held together by chemical forces

2. tiny amount: a very small amount of something

[Late 18th century. Via French molécule< modern Latin molecula "small mass" < Latin moles "mass"]
Advertisement

© 2009 Microsoft