-ae
/iː/suffix
forming plural nouns ［构成复数名词］
1
- used in names of animal and plant families and other groups用于动植物科名和其他类群名称：
Felidae
Gymnospermae.
2
- used instead of -as in the plural of many non-naturalized or unfamiliar nouns ending in -a derived from Latin or Greek［代替-as, 用于从拉丁语或希腊语派生出的以-a结尾的尚未归化的新名词］：
striae
larvae.
词源
Latin plural suffix， or representing the Greek plural ending -ai.