[ˌʌɪsə(ʊ)ˈtɒnɪk], (Adjective)

Definitions:
- (of muscle action) taking place with normal contraction

- denoting or relating to a solution having the same osmotic pressure as some other solution, especially one in a cell or a body fluid


Phrases:

Origin:
early 19th century (as a musical term designating a system of tuning, characterized by equal intervals): from Greek isotonos, from isos ‘equal’ + tonos ‘tone’