noun
- 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: phosphorus, P, atomic number 15
- The 16th letter of the Roman alphabet.
- A note appended to a letter after the signature.
- synonyms: postscript
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). PS. Retrieved September 20, 2026, from http://smartdefine.org/ps/definitions/1304340 |
| Chicago | WordNet. 2010. "PS" http://smartdefine.org/ps/definitions/1304340 (accessed September 20, 2026). |
| Harvard | WordNet 2010, PS, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ps/definitions/1304340>. |
| MLA | WordNet. "PS" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ps/definitions/1304340> |