| Epitrochoid | n. [ Pref. epi- + Gr. &unr_; wheel + -oid. ] (Geom.) A kind of curve. See Epicycloid, any Trochoid. [ 1913 Webster ] |
| wankel engine | (n) a rotary engine that is a four-stroke internal-combustion engine without reciprocating parts, Syn. epitrochoidal engine, Wankel rotary engine |
| Epitrochoid | n. [ Pref. epi- + Gr. &unr_; wheel + -oid. ] (Geom.) A kind of curve. See Epicycloid, any Trochoid. [ 1913 Webster ] |