[ˈlitməs]
石蕊：由石蕊(Roccella tinctoria)和其他苔癣所制成的一种色素，用于检测酸碱度，pH范围在4.5～8.3之间。原材料是石蕊素(azolitmin)，结晶性石蕊红素(erythrolitmin)和石蕊红素(erythrolein)- pionemia
- Piophila
- piorthopnea
- pioscope
- Piotrowski's sign
- pipamazine
- pipamperone
- Pipanol
- pipazethate hydrochloride
- pipecolic acid
- pipenzolate bromide
- Piper
- piperacetazine
- piperacillin sodium
- piperazidine
- piperazine
- piperidione
- piperidolate hydrochloride
- piperine
- piperism
- piperocaine hydrochloride
- piperoxan hydrochloride
- pipet
- pipette
- Pipizan