Lexic.us

Definition of Trochoid

1. n. 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.

2. a. Admitting of rotation on an axis; -- sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column.

Definition of Trochoid

1. Noun. (mathematics) The curve traced by a point on a circle as it rolls along a straight line ¹

2. Adjective. capable of rolling ¹

3. Adjective. allowing rotation ¹

¹ Source: wiktionary.com

Definition of Trochoid

1. a type of geometric curve [n -S]

Medical Definition of Trochoid

1. 1. 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. 2. Admitting of rotation on an axis; sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column. 3. Top-shaped; having a flat base and conical spire; said of certain shells. 4. Of or pertaining to the genus Trochus or family Trochidae. Origin: Gr. A wheel; cf. F. Trochoide. See Troche. (28 Oct 1998)

Lexicographical Neighbors of Trochoid

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