ˌpast ˈparticiple BrE AmE 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’)