dif·fractBrE/dɪˈfrækt/NAmE/dɪˈfrækt/verbpresent simple - I / you / we / theydiffractBrE/dɪˈfrækt/NAmE/dɪˈfrækt/present simple - he / she / itdiffractsBrE/dɪˈfrækts/NAmE/dɪˈfrækts/past simplediffractedBrE/dɪˈfræktɪd/NAmE/dɪˈfræktɪd/past participlediffractedBrE/dɪˈfræktɪd/NAmE/dɪˈfræktɪd/ -ing formdiffractingBrE/dɪˈfræktɪŋ/NAmE/dɪˈfræktɪŋ/~sth(physics物理) tobreakupastreamoflightintoaseriesofdarkandlightbandsorintothedifferentcoloursofthespectrum(使光束)衍射▸dif·frac·tionBrE/dɪˈfrækʃn/NAmE/dɪˈfrækʃn/noun[U]