: cardiovascular exercise
30 minutes of cardio daily
Examples of cardio in a Sentence
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Carrie Madormo, Rn, Mph, Verywell Health, 21 Apr. 2025
Best Overall: Reebok Nano X5 Pros Supports box jumps and step-ups
Firm enough for heavier lifting
Very secure fit
Under $150
Cons
Too stiff for bouncy movements and certain types of cardio workouts
Christa Sgobba, SELF’s director of food and fitness, has worn Reebok Nanos for years.
—Sara Coughlin, SELF, 18 Feb. 2025
San Diego Union-Tribune, 26 June 2025
High-intensity movements and exercises with small dumbbells promote a balance of cardio, endurance and muscle toning.
—Andrea Onate, Footwear News, 20 June 2025
See All Example Sentences for cardio
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Adjective
Incorporate cardio exercise and strength training into your routine to support your weight loss efforts and overall health.26
Hydration: Staying hydrated supports metabolic health and weight loss.
—Carrie Madormo, Rn, Mph, Verywell Health, 21 Apr. 2025
Best Overall: Reebok Nano X5 Pros Supports box jumps and step-ups
Firm enough for heavier lifting
Very secure fit
Under $150
Cons
Too stiff for bouncy movements and certain types of cardio workouts
Christa Sgobba, SELF’s director of food and fitness, has worn Reebok Nanos for years.
—Sara Coughlin, SELF, 18 Feb. 2025
Noun
Some of the class options include yoga, Pilates and cardio.
—San Diego Union-Tribune, 26 June 2025
High-intensity movements and exercises with small dumbbells promote a balance of cardio, endurance and muscle toning.
—Andrea Onate, Footwear News, 20 June 2025
See All Example Sentences for cardio
Cite this Entry
“Cardio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardio. Accessed 9 Jul. 2025.
Copy CitationMedical Definition
cardio
1 of 2 adjective
car·dio
ˈkärd-ē-(ˌ)ō 
: cardiovascular sense 2
cardio exercises
worked out on cardio machines
cardio
2 of 2 noun
: cardiovascular exercise
30 minutes of cardio daily
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