Definition of form class in English:
A class of linguistic forms with grammatical or syntactic features in common; a part of speech or subset of a part of speech.
- The notional definition of a noun does not cover such words as action, existence, happiness, temperature that belong to the noun form class on formal criteria.
- You'll also find that linguistic grammar talks about form and function, structure and form classes.
Definition of form class in:
- US English dictionary