atomic number 15
English Thesaurus
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 (noun.substance)
| hypernym | : | chemical element, element, |
| definition | : | any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter (noun.substance) |
| substance meronym | : | apatite, |
| definition | : | a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus (noun.substance) |
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