English

Definition of isotonic adjective from the Oxford Advanced Learner's Dictionary

 

isotonic

 adjective
adjective
BrE BrE//ˌaɪsəʊˈtɒnɪk//
 
; NAmE NAmE//ˌaɪsoʊˈtɑːnɪk//
 
 
jump to other results
(of a drink) with added minerals and salts, intended to replace those lost during exercise Word Origin early 19th cent. (as a musical term designating a system of tuning, characterized by equal intervals): from Greek isotonos, from isos ‘equal’ + tonos ‘tone’.
See the Oxford Advanced American Dictionary entry: isotonic