Search Result for "atomic number 1":
Wordnet 3.0

NOUN (1)

1. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe;
[syn: hydrogen, H, atomic number 1]



WordNet (r) 3.0 (2006):

atomic number 1
    n 1: a nonmetallic univalent element that is normally a
         colorless and odorless highly flammable diatomic gas; the
         simplest and lightest and most abundant element in the
         universe [syn: hydrogen, H, atomic number 1]