cardio

[ kahr-dee-oh ]

nounInformal.

aerobic exercise that stimulates and strengthens the heart and lungs: I mostly use weights, but I always add a little cardio into my routine.

adjectiveInformal.

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.

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.

Origin of cardio-

<Greek kardio-, combining form of kardía

Also especially before a vowel, cardi-.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use cardio in a sentence

Some supporters keep pace, and others trail behind walking, there to observe Booker in the flesh more than for the cardio.
The Ugly Truth About Cory Booker, New Jersey’s Golden Boy | Olivia Nuzzi | October 20, 2014 | THE DAILY BEAST
MORE FROM DAILYBURN: 10 Ways You're Sabotaging Your Workout Does Fasted cardio Really Burn More Fat?
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However, research has demonstrated that fasted cardio does not increase fat burning over a 24-hour period.
Does Fasted Cardio Really Burn More Fat? | DailyBurn | August 22, 2014 | THE DAILY BEAST
Cardiello has employed the fasted cardio method with clients for a short period of time and within a controlled environment.
Does Fasted Cardio Really Burn More Fat? | DailyBurn | August 22, 2014 | THE DAILY BEAST
Those carbs need to be burned with cardio, or else weight loss will plateau.
Dispelling the ‘Chronic Cardio’ Myth | Jason Fitzgerald | April 23, 2014 | THE DAILY BEAST

I would particularly mention, however, a group of cardio-vascular troubles that lie between these two extremes.
The Lettsomian Lectures 1900-1901 | J. Mitchell Bruce
Perhaps such cases of cardio-vascular disease might be most correctly said to be due to the wear and tear of life.
The Lettsomian Lectures 1900-1901 | J. Mitchell Bruce
Beginning with the simplest kind of cardio-vascular disorder, let us see what the prognosis is in tobacco heart.
The Lettsomian Lectures 1900-1901 | J. Mitchell Bruce
So much for the general prognosis in each of these kinds of cardio-vascular disorder and disease.
The Lettsomian Lectures 1900-1901 | J. Mitchell Bruce
The wide distribution of these pharyngo-laryngo-esophago-pulmano-cardio-gastric nerves gives ample opportunity for reflexes.
Psychotherapy | James J. Walsh

British Dictionary definitions for cardio-

cardio-

combining form

heart: cardiogram

Origin of 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

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