Definition from Wiktionary, the free dictionary
- -inæ (obsolete)
-inae f pl
- (taxonomy) Used to form names of subfamily of animals.
- (taxonomy) Used to form names of subtribe of plants, algae and fungi and viruses.
- All derivations featuring this suffix are pluralia tantum, but were formally understood as adjectives modifying the Latin feminine plural nouns bestiae (“beasts”) or plantae; e.g. Felinae (“cats”) = bestiae felinae (“feline beasts”).
- With the understanding that, for example, members of Fungi, Archaea, and Virus are neither beasts nor plants, the historical fiction has little contemporary relevance.