P
— Navneord
– Engelsk
~ the 16th letter of the Roman alphabet
P
— Navneord
– Engelsk
~ 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
p-n junction
— Navneord
– Engelsk
~ the junction between a p-type semiconductor and an n-type semiconductor; "a p-n junction has marked rectifying characteristics"
p.a.
— Navneord
– Engelsk
~ an electronic amplification system used as a communication system in public areas
p.a.
— Biord
– Engelsk
~ by the year; every year (usually with reference to a sum of money paid or received); "he earned $100,000 per annum"; "we issue six volumes per annum"
P.E.
— Navneord
– Engelsk
~ the mechanical energy that a body has by virtue of its position; stored energy