Search Result for "atomic number 9":
Wordnet 3.0

NOUN (1)

1. a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite;
[syn: fluorine, F, atomic number 9]



WordNet (r) 3.0 (2006):

atomic number 9
    n 1: a nonmetallic univalent element belonging to the halogens;
         usually a yellow irritating toxic flammable gas; a powerful
         oxidizing agent; recovered from fluorite or cryolite or
         fluorapatite [syn: fluorine, F, atomic number 9]