Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
elephant garlic
elephant grass
elephant gun
elephant’s ear
elephant’s foot
elephant seal
Elephanta Island
elephantbird
elephantiasis
elephantine
Eleusinian
Eleusinian mysteries
eleutherian
elevate
elevated
elevated railroad
elevating transfer vehicle
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

elementary particle

el·e·men·ta·ry par·ti·cle (plural el·e·men·ta·ry par·ti·cles)


noun 
Definition:
 
basic indivisible constituent of matter: any one of the subatomic constituents of which matter and energy are composed, e.g. electrons, leptons, photons, or hadrons

Advertisement

© 2009 Microsoft