1 [roh-teyt or, esp. British, roh-teyt]
verb (used with object), rotated, rotating.
to cause to turn around an axis or center point; revolve.
to cause to go through a cycle of changes; cause to pass or follow in a fixed routine of succession: to rotate farm crops.
to replace (a person, troops, etc.) by another or others, usually according to a schedule or plan.
verb (used without object), rotated, rotating.
to turn around on or as if on an axis.
to proceed in a fixed routine of succession: The sentries rotated in keeping watch.

1800–10; < Latin rotātus (past participle of rotāre to cause to spin, roll, move in a circle), equivalent to rot(a) wheel + -ātus -ate1

rotatable, adjective
rotatably, adverb
nonrotatable, adjective
nonrotating, adjective
unrotated, adjective
unrotating, adjective

1. wheel, whirl. See turn. Unabridged


2 [roh-teyt]
wheel-shaped: applied especially to a gamopetalous short-tubed corolla with a spreading limb.

1775–85; < Latin rot(a) wheel + -ate1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To rotate
World English Dictionary
1.  to turn or cause to turn around an axis, line, or point; revolve or spin
2.  to follow or cause to follow a set order or sequence
3.  (of a position, presidency, etc) to pass in turn from one eligible party to each of the other eligible parties
4.  (of staff) to replace or be replaced in turn
5.  botany designating a corolla the united petals of which radiate from a central point like the spokes of a wheel

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
It does not rotate alone, a situation that could conceivably result in having
  side tables at one's feet.
In the newly created position, which is designed to rotate among leaders in the
The house's ability to rotate is thus limited only by the length of the hoses
  at full stretch.
When they are formed, neutron stars rotate in space.
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