phosphorus
- Proper noun. A name sometimes used for Hesperus, the personification in Greek mythology of the planet Venus.
- Proper noun. An ancient Greek name for the morning star (the planet Venus when it is visible in the eastern sky before sunrise).
- Noun. (chemistry) a chemical element (''symbol'' P) with an atomic number of 15, that exists in several allotropic forms.
- Noun. (obsolete) any substance exhibiting phosphorescence; a phosphor.
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This entry was last updated on RefTopia from its source on 3/20/2012.