/,plu:'pɜ:fɪkt; ,plu`pɝfɪkt/
adj (also past perfect) (grammar) (of the form of the verb phrase) expressing an action completed before a particular pointin the past （指动词词组形式）过去完成式的
*a pluperfect(form of a) verb phrase 过去完成式动词词组.

n (also past perfect) such a form (in English had and a past participle, as in `As he had not received my letter, he did not come') 过去完成式（在英语中had加过去分词, 如此处例句中的had加received）.

n
[Date: 1400-1500; Language: Late Latin;Origin: plusquamperfectus 'more than perfect']
the pluperfect
technical the past perfect tense of a verb