(PAST TENSE) [noun] [U], [adjective] [not gradable] [specialized] - (being) the tense of a verb that shows action that has happened in the past or before another time or eventIn English, the perfect is formed with 'have' and the past participle of the verb.Perfect participle is another word for past participle.See at past (GRAMMAR).
PERFECT
Meaning of PERFECT in English
Cambridge English vocab. Кембриджский английский словарь. 2012