See Also: Rubinstein (as used in expressions)(encyclopedia)
Trochoid(medicine)
trochoid(dictionary)
trochoid articulation(medicine)
trochoid joint(medicine)
Rubinstein, Jack(medicine)
Rubinstein, Artur(encyclopedia)
Rubinstein, Helena(encyclopedia)
Rubinstein-Taybi syndrome(medicine)
Rubinstein, Anton (Grigoryevich)(encyclopedia)

Rubinstein (as used in expressions) (sh) and Trochoid (medicine)


Rubinstein (as used in expressions) (sh)


Trochoid (medicine)


trochoid


1. <geometry> 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. <anatomy> Admitting of rotation on an axis; sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column.

3. <marine biology> Top-shaped; having a flat base and conical spire; said of certain shells.

4. <zoology> Of or pertaining to the genus Trochus or family Trochidae.

Origin: Gr. A wheel; cf. F. Trochoide. See Troche.