p-

英 ['piː] 美 ['piː]

• [医] 对[位](化学)

英英释义

名词 p:

1. 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

2. the 16th letter of the Roman alphabet