i·so·ton·ic
adjective/ˌaɪsəʊˈtɒnɪk/
/ˌaɪsəʊˈtɑːnɪk/
- (of a drink) with added minerals and salts, intended to replace those lost during exercise
含矿物质和盐分的；等渗的 Word Originearly 19th cent. (as a musical term designating a system of tuning, characterized by equal intervals): from Greek isotonos, from isos ‘equal’ + tonos ‘tone’.