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1. Circle; cycle: cyclorama.
2. A cyclic compound: cyclohexane.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
cyclo-or before a vowel
1. indicating a circle or ring: cyclotron.
2. (Chemistry) denoting a cyclic compound: cyclohexane.
[from Greek kuklos cycle]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cy•clo(ˈsi kloʊ, saɪ-)
n., pl. -clos.
a three-wheeled pedaled or motorized taxi in SE Asia.
[1960–65; < French cyclo(-pousse)=cyclo-, comb. form representing cycle cycle + pousse, appar. short for pousse-pousse jinrikisha (reduplication of pousse, n. derivative of pousser to push)]
a combining form meaning “circle” (cyclometer; cyclotron); “cycle” (cyclothymia); “(of a chemical compound) structured in closed chains” (cyclohexane); “cyclone” (cyclogenesis).
[< Greek kyklo-, comb. form of kýklos circle, ring; c. Skt cakra wheel]
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