Search Result for "atomic number 5":
Wordnet 3.0

NOUN (1)

1. a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder;
[syn: boron, B, atomic number 5]



WordNet (r) 3.0 (2006):

atomic number 5
    n 1: a trivalent metalloid element; occurs both in a hard black
         crystal and in the form of a yellow or brown powder [syn:
         boron, B, atomic number 5]