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or cycl-
1. Circle; cycle: cyclorama.
2. A cyclic compound: cyclohexane.

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


or before a vowel


combining form
1. indicating a circle or ring: cyclotron.
2. (Chemistry) denoting a cyclic compound: cyclohexane.
[from Greek kuklos cycle]


(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]
References in periodicals archive ?
HOLMFIRTH cycle rider Amira Mellor has decided to dedicate her future to Cyclo- Cross.
KENILWORTH'S Steven Proud, the rider, was on the podium again at the West Midlands Cyclo- Cross League after finishing a well-earned third in the junior category in the mud at Rosliston Forestry Centre.
Also riding will be MI veteran Andy Shaw who chalked up the race team's 100th win of the season at Plymouth at the weekend when he won a cyclo- cross event.