ˌpast ˈparticiple noun [countable] technical
the form of a verb used with the verb ‘to have’ in perfect tenses (for example ‘eaten’ in ‘I have eaten’), or with the verb ‘to be’ in the passive (for example ‘changed’ in ‘it was changed’), or sometimes as an adjective (for example ‘broken’ in ‘a broken leg’)

[TahlilGaran] Dictionary of Contemporary English ▲