名詞 pyrene:

1. a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
2. the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it

py.rene

n.（名詞）
The stone of certain fruits, such as the cherry.
果核：某些水果的核，但如櫻桃

來源：
New Latin ptrôna
現代拉丁語 ptrôna
from Greek purôn
源自 希臘語 purôn