Search Result for "oxygen debt":
Wordnet 3.0

NOUN (1)

1. a cumulative deficit of oxygen resulting from intense exercise; the deficit must be made up when the body returns to rest; 



WordNet (r) 3.0 (2006):

oxygen debt
    n 1: a cumulative deficit of oxygen resulting from intense
         exercise; the deficit must be made up when the body returns
         to rest