[ ˌʌɪsə(ʊ)'tɒnɪk ]
■ adjective
1》 Physiology (of muscle action) taking place with normal contraction.
2》 Physiology having the same osmotic pressure.
3》 (of a drink) containing essential salts and minerals in the same concentration as in the body.
Derivatives
~ally adverb
~ity noun
Origin
C19: from Gk isotonos , from isos 'equal' + tonos 'tone'.