atomic number 15

1 definition found

atomic number 15 - WordNet (r) 2.1 (2005) :

  atomic number 15
      n 1: a multivalent nonmetallic element of the nitrogen family
           that occurs commonly in inorganic phosphate rocks and as
           organic phosphates in all living cells; is highly reactive
           and occurs in several allotropic forms [syn: phosphorus,
           P, atomic number 15]