Past Participle (definition)

a participle is a word that comes from a verb and used as an adjective. A past participle is the same as a participle except it is in past tense form. (I painted the room. Vs. I have painted the room).

In Gaelic, the role of the past participle in passive-like constructions (The door was shut) is taken on by the verbal adjective

References

Crystal, David. A Dictionary of Linguistics and Phonetics. The language library. Oxford, UK: Blackwell, 1997.

Matthews, P. H. The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press, 1997.