吡

乙酰胺吡咯烷酮

yǐ xiān àn bǐ luò wán tóng

(pharmacology) piracetam (C6H10N2O2), a nootropic

吡叻

bǐ lè

Perak (state of Malaysia)

吡咯

bǐ luò

pyrrole (C4H5N) (loanword)

吡唑

bǐ zuò

pyrazole (chemistry) (loanword)

吡啶

bǐ dìng

pyridine C5H5N (loanword)

吡喃

bǐ nán

pyran (chemistry) (loanword)

吡嗪

bǐ qín

pyrazine (chemistry) (loanword)

吡拉西坦

bǐ lā xī tǎn

(pharmacology) (loanword) piracetam (C6H10N2O2), a nootropic