congener
/ˈkɒndʒɪnə(r)/noun
1
- a thing or person of the same kind or category as another同类的人（或事物）。
1.1
- an animal or plant of the same genus as another同属的动物（或植物）：
these birds or their congeners may be found in East Africa.
这些鸟或与它们同属的鸟类可能会存在于东非。
2
- a minor chemical constituent, especially one which gives a distinctive character to a wine or spirit or is responsible for some of its physiological effects酒类芳香物。
词源
mid 18th cent.: from Latin， from con- 'together with'+genus， gener- 'race， stock'.