Wankel

[ wahng-kuh l, wang-; German vahng-kuh l ]
/ ˈwɑŋ kəl, ˈwæŋ-; German ˈvɑŋ kəl /

noun

Fe·lix [fee-liks; German fey-liks] /ˈfi lɪks; German ˈfeɪ lɪks/,1902–88, German engineer: inventor of rotary engine.