or athletic heart
nonpathological enlargement of the heart resulting from intensive aerobic exercise.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for athletic heart
[ ăth-lĕt′ĭk ]
Enlargement of the heart observed in some athletes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.