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Elementary Dictionary
       

aer·o·bics

aerobics

 
pronunciation:
eI ro bihks
features:
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part of speech: noun
inflections: aerobics
definition: When people talk about aerobics, they are talking about ways of doing exercise that make the heart and lungs work a little bit hard. This working of the heart and lungs helps the body use oxygen better. Running, swimming, biking, and dancing are some forms of aerobics.
The fitness center offers many classes for aerobics.
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  breathe, exercise, respiration
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