cyclo-

a combining form meaning “cycle,” used in the formation of compound words: cyclohexane.

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Commas mark divisions in sentences. Periods end declarative sentences. Apostrophes show possession. Easy, right? Well, punctuation can get pretty tricky—fast. Think you got what it takes to be a punctuation expert? Take our quiz to prove it!

Question 1 of 10

Which of the options below is the best punctuation for the sentence? It__s your turn to pick the movie __ but your sister gets to pick the board game we _ re going to play.

Its your turn to pick the movie but your sister gets to pick the board game we’re going to play.

It’s your turn to pick the movie but your sister gets to pick the board game were going to play.

It’s your turn to pick the movie, but your sister gets to pick the board game we’re going to play.

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Also especially before a vowel, cycl-.

Origin of cyclo-

< Greek kyklo-, combining form of kýklos circle, ring; cognate with Sanskrit cakra, wheel

Words nearby cyclo-

cyclitis, cyclization, cyclize, cyclizine, cyclo, cyclo-, cyclo-cross, cyclo., cycloaddition, cycloaliphatic, cycloalkane

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for cyclo-

cyclo-

before a vowel cycl-

combining form

indicating a circle or ringcyclotron

denoting a cyclic compoundcyclohexane

Word Origin for cyclo-

from Greek kuklos cycle

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for cyclo-

cyclo-

pref.

Circle; cycle:cyclophoria.

A cyclic compound:cyclopeptide.