单词	epicycloid
释义	epicycloid noun epi·​cy·​cloid ˌe-pə-ˈsī-ˌklȯid  : a curve traced by a point on a circle that rolls on the outside of a fixed circle epicycloidal ˌe-pə-sī-ˈklȯi-dᵊl  adjective Illustration of epicycloid epicycloid E traced by point P on circle R rolling on fixed circle F Word History First Known Use circa 1696, in the meaning defined above
随便看	Theriodontia theriolatry theriomorph theriomorphic theriomorphize theriomorphs therm therm foot therm leg thermae thermal thermal agitation thermal ammeter thermal analysis thermal barrier thermal belt thermal black thermal conduction thermal conductivity thermal converter thermal cracking thermal cutout thermal diffusion thermal diffusivity thermal efficiency

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