Meaning of pro-form
Pronunciation: (prō'fôrm"), [key]
— n. Gram.
- a word used to replace or substitute for a word, phrase, or clause belonging to a given grammatical class, as a pronoun used to replace a noun or noun phrase, there used to replace an adverb or adverbial phrase of place, as in I parked the car near the entrance and left it there, or so used to substitute for a clause, as in Have they come? I think so.