| NOUN | substance | atomic number 15, phosphorus, P | a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells |
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| Meaning | 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. | |
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| Synonyms | phosphorus, P | |
| Broader | chemical element, element | 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 |
| Substance of | apatite | A common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate |
| Spanish | fósforo, número atómico 15, P | |
| Catalan | fòsfor, número atòmic 15, P | |
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