Definition of Atomic Number 20 in English :
Define Atomic Number 20 in English
Atomic Number 20 meaning in English
Meaning of Atomic Number 20 in English
Pronunciation of Atomic Number 20 in English
Atomic Number 20 pronunciation in English
Pronounce Atomic Number 20 in English
Atomic Number 20
see synonyms of atomic number 20Noun
1. atomic number 20, ca, calcium
a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
WordNet Lexical Database for English. Princeton University. 2010.