cyclo-

cyclo-

or cycl-

pref.

1. Circle; cycle: cyclorama.

2. A cyclic compound: cyclohexane.

---

[Greek kuklo-, from kuklos, circle; see k^wel- in Indo-European roots.]

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

cycl-

combining form

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.
n.

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)]

cyclo-

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]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.