Found 1 items, similar to Trochoid.
English → English (gcide) Definition: Trochoid Trochoid \Tro"choid\, n. [Gr. ? a wheel + -oid; cf. F. trocho["i]de. See Troche.] (Geom.) The curve described by any point in a wheel rolling on a line; a cycloid; a roulette; in general, the curve described by any point fixedly connected with a moving curve while the moving curve rolls without slipping on a second fixed curve, the curves all being in one plane. Cycloids, epicycloids, hypocycloids, cardioids, etc., are all trochoids. [1913 Webster] Trochoid \Tro"choid\, a. 1. (Anat.) Admitting of rotation on an axis; -- sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column. [1913 Webster] 2. (Zo["o]l.) Top-shaped; having a flat base and conical spire; -- said of certain shells. [1913 Webster] 3. (Zo["o]l.) Of or pertaining to the genus Trochus or family Trochid[ae]. [1913 Webster]