| P | the 16th letter of the Roman alphabet |
|---|---|
| P | a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells |
| P | the junction between a p-type semiconductor and an n-type semiconductor |
| P | a junction transistor having an n-type semiconductor between a p-type semiconductor that serves as an emitter and a p-type semiconductor that serves as a collector |
| P | a semiconductor in which electrical conduction is due chiefly to the movement of positive holes |
| P | English writer known for his humorous novels and stories (1881-1975) |
| P | German arms manufacturer and inventor of a repeating rifle and pistol (1838-1914) |
| P | United States showman who popularized the circus (1810-1891) |
| P | by the year |
| P | the mechanical energy that a body has by virtue of its position |
| P | after noon |
| P | (Latin) between noon and midnight |