trochoid

[ troh-koid ]

/ ˈtroʊ kɔɪd /

noun

Geometry. a curve traced by a point on a radius or an extension of the radius of a circle that rolls, without slipping, on a curve, another circle, or a straight line. Equation: x = aθ − b sin θ, y = a − b cos θ.

adjective

rotating on an axis, as a wheel.

Origin of trochoid

First recorded in 1695–1705, trochoid is from the Greek word trochoeidḗs round like a wheel. See troche, -oid

OTHER WORDS FROM trochoid

tro·choi·dal, adjectivetro·choi·dal·ly, adverb

Words nearby trochoid

trochilus, trochlea, trochlear, trochlear nerve, trochlear spine, trochoid, trochoid joint, trochophore, trod, trodden, trode

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trochoid

Then any point in the circumference of the half-crown will move through a curve called a ‘trochoid.’
Boating|W. B. Woodgate

British Dictionary definitions for trochoid

trochoid

/ (ˈtrəʊkɔɪd) /

noun

the curve described by a fixed point on the radius or extended radius of a circle as the circle rolls along a straight line

adjective Also: trochoidal

rotating or capable of rotating about a central axis

anatomy (of a structure or part) resembling or functioning as a pivot or pulley

Derived forms of trochoid

trochoidally, adverb

Word Origin for trochoid

C18: from Greek trokhoeidēs circular, from trokhos wheel

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for trochoid

trochoid

[ trō′koid′, trŏk′oid′ ]

adj.

Capable of or exhibiting rotation about a central axis.

Permitting rotation, as a pivot.

单词	trochoid
释义	trochoid [ troh-koid ] / ˈtroʊ kɔɪd / noun Geometry. a curve traced by a point on a radius or an extension of the radius of a circle that rolls, without slipping, on a curve, another circle, or a straight line. Equation: x = aθ − b sin θ, y = a − b cos θ. adjective rotating on an axis, as a wheel. Origin of trochoid First recorded in 1695–1705, trochoid is from the Greek word trochoeidḗs round like a wheel. See troche, -oid OTHER WORDS FROM trochoid tro·choi·dal, adjectivetro·choi·dal·ly, adverb Words nearby trochoid trochilus, trochlea, trochlear, trochlear nerve, trochlear spine, trochoid, trochoid joint, trochophore, trod, trodden, trode Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for trochoid Then any point in the circumference of the half-crown will move through a curve called a ‘trochoid.’ Boating\|W. B. Woodgate British Dictionary definitions for trochoid trochoid / (ˈtrəʊkɔɪd) / noun the curve described by a fixed point on the radius or extended radius of a circle as the circle rolls along a straight line adjective Also: trochoidal rotating or capable of rotating about a central axis anatomy (of a structure or part) resembling or functioning as a pivot or pulley Derived forms of trochoid trochoidally, adverb Word Origin for trochoid C18: from Greek trokhoeidēs circular, from trokhos wheel Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for trochoid trochoid [ trō′koid′, trŏk′oid′ ] adj. Capable of or exhibiting rotation about a central axis. Permitting rotation, as a pivot. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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