a tapering off or recovery from strenuous physical exercise, especially running or racing, by slowing down or doing light stretches.
Origin of warm-down
by analogy with warmup
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
light exercises performed to aid recovery from strenuous physical activity
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