p

noun

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

   Synonyms

   • phosphorus, P, atomic number 15

   Less specific

   • chemical element, element

   Made from

   • apatite

2. the 16th letter of the Roman alphabet

   Synonyms

   • P

   Less specific

   • letter, letter of the alphabet, alphabetic character

   Member of

   • Roman alphabet, Latin alphabet