 phosphorus |
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| 1. | [ noun ] (chemistry) 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: | atomic_number_15 P | |
| Related terms: | chemical_element apatite | |
| 2. | [ noun ] (astronomy) a planet (usually Venus) seen just before sunrise in the eastern sky | |
| Synonyms: | daystar morning_star | |
| Related terms: | planet | |
| Similar spelling: |
phosphorous phosphoresce phosphoric |
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