rotation

ro·ta·tion

noun \rō-ˈtā-shən\

Definition of ROTATION

1

a (1) : the action or process of rotating on or as if on an axis or center (2) : the act or an instance of rotating something

b : one complete turn : the angular displacement required to return a rotating body or figure to its original orientation

2

a : return or succession in a series <rotation of the seasons>

b : crop rotation

3

: the turning of a body part about its long axis as if on a pivot

4

: a game of pool in which all 15 object balls are shot in numerical order

5

: the series of pitchers on a baseball team who regularly start successive games in turn

— ro·ta·tion·al \-shnəl, -shə-n^əl\ adjective

Examples of ROTATION

1. the rotation of the Earth around its axis
2. the rotation of the Moon around the Earth
3. The Earth makes one rotation every day.
4. Alfalfa and corn are planted in rotation.
5. the rotation of the job of club president
6. The car needs a tire rotation.

First Known Use of ROTATION

1555

Related to ROTATION

Synonyms

gyration, pirouette, reel, revolution, roll, spin, twirl, wheel, whirl

Related Words

circuit, circulation, ring, round; coil, curl, curve, spiral, twist, whorl; circle, orbit; eddy, swirl

Rhymes with ROTATION

aeration, Alsatian, carnation, castration, causation, cessation, cetacean, citation, Claymation, cognation, collation, conflation, C ration, creation, cremation, crenation, Croatian, crustacean, dalmatian, damnation, deflation, delation, dictation, dilation, donation, earth station, elation, Eurasian, filtration, fixation, flirtation, flotation, formation, foundation, frustration, gas station, gestation, gradation, gustation, guttation, gyration, hydration, inflation, lactation, legation, libation, location, lunation, lustration, luxation, migration, mutation, narration, negation, notation, oblation, oration, outstation, ovation, palmation, palpation, plantation, potation, predation, privation, probation, pronation, proration, prostration, pulsation, punctation, pupation, purgation, relation, rogation, salvation, sedation, sensation, serration, space station, stagflation, stagnation, starvation, striation, substation, summation, tarnation, taxation, temptation, translation, truncation, vacation, vexation, vibration, vocation, way station, workstation

ro·ta·tion

noun \rō-ˈtā-shən\   (Medical Dictionary)

Medical Definition of ROTATION

: the action or process of rotating on or as if on an axis or center; specifically : the turning of a body part about its long axis as if on a pivot <rotation of the head to look over the shoulder>

—ro·ta·tion·al \-shnəl, -shən-^əl\ (audio pronunciation) adjective