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 WordNet 3.0 & Open English WordNet

Phosphorus is a chemical element with the symbol P and atomic number 15. Wikipedia

Chemical element with symbol P and atomic number 15. Wikipedia Disambiguation

Chemical element with symbol P and atomic number 15 Wikidata

A nonmetallic element used to manufacture phosphoric acid, in phosphor bronzes, incendiaries, pyrotechnics, matches, and rat poisons; the white or yellow allotrope is a soft waxy solid, soluble in carbon disulfide, insoluble in water and alcohol, and is poisonous and self-igniting in air; the red allotrope is an amorphous powder, insoluble in all solvents and is nonpoisonous; the black allotrope comprises lustrous crystals similar to graphite, and is insoluble in most solvents. OmegaWiki

A chemical element (symbol P) with an atomic number of 15, that exists in several allotropic forms. Wiktionary

Element. Wiktionary (translation)