phosphorus

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phosphorus calcium-phosphorus ratio phosphorus pentoxide phosphorus 32

Main Entry: phos·pho·rus
Pronunciation: fäs-f(-)rs
Function: noun
Usage: often attributive
: a nonmetallic multivalent element that occurs widely in combined form especially as inorganic phosphates in minerals, soils, natural waters, bones, and teeth and as organic phosphates in all living cells and that exists in several allotropic forms -- symbol P; see ELEMENT table