at·tenu·ateBrE/əˈtenjueɪt/NAmE/əˈtenjueɪt/verbpresent simple - I / you / we / theyattenuateBrE/əˈtenjueɪt/NAmE/əˈtenjueɪt/present simple - he / she / itattenuatesBrE/əˈtenjueɪts/NAmE/əˈtenjueɪts/past simpleattenuatedBrE/əˈtenjueɪtɪd/NAmE/əˈtenjueɪtɪd/past participleattenuatedBrE/əˈtenjueɪtɪd/NAmE/əˈtenjueɪtɪd/ -ing formattenuatingBrE/əˈtenjueɪtɪŋ/NAmE/əˈtenjueɪtɪŋ/~sth(formal) tomakesthweakerorlesseffective使减弱;使降低效力◆Thedrugattenuatestheeffectsofthevirus. 这药能减轻病毒的作用。▸at·tenu·ationBrE/əˌtenjʊˈeɪʃn/NAmE/əˌtenjʊˈeɪʃn/noun[U]