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cardio

[ kahr-dee-oh ]
/ ˈkɑr di oʊ /
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noun Informal.
aerobic exercise that stimulates and strengthens the heart and lungs: I mostly use weights, but I always add a little cardio into my routine.
adjective Informal.
of or relating to aerobic exercise: The class begins with a slow and steady warmup, and then it switches to a cardio workout.
of or relating to the heart; cardiovascular: He's a hugely successful cardio surgeon.
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Origin of cardio

First recorded in 1960–65

Other definitions for cardio (2 of 2)

cardio-

a combining form meaning “heart,” used in the formation of compound words: cardiogram.
Also especially before a vowel, cardi-.

Origin of cardio-

<Greek kardio-, combining form of kardía
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use cardio in a sentence

British Dictionary definitions for cardio

cardio-

before a vowel cardi-


combining form
heartcardiogram

Word Origin for cardio-

from Greek kardia heart
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 cardio

cardio-

pref.
Heart:cardiovascular.
Cardia:cardiodiosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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