单词	epicycloid
释义	ep·i·cy·cloid \ˌ ̷ ̷ ̷ ̷ˈsīˌklȯid\ noun (-s) Etymology: probably from French épicycloïde, from épicycle (from Late Latin epicyclus) + -oïde -oid : a curve traced by a point on a circle that rolls on the outside of a fixed circle — compare hypocycloid [epicycloid E, traced by point P, on circle R, rolling on fixed circle F]
随便看	teratogenicity teratoid teratological teratologist teratology teratoma teratosis terawatt terbium terbium terbium metal terce tercel tercel tercelet tercel gentle tercentenary tercentennial tercentesimal tercer terceron tercet terchloride tercia tercio

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