isotonic
1. [ adjective ] used of solutions; having the same or equal osmotic pressure
Synonyms: isosmotic
Related terms: hypotonic hypertonic
2. [ adjective ] relating to or characterized by the equal intervals of the well-tempered scale
Examples:

"isotonic tuning"

Related terms: tone
3. [ adjective ] of or involving muscular contraction in which tension is constant while length changes
Related terms: isometric physiology
4. [ adjective ] (physiology) of two or more muscles; having equal tension
Related terms: physiology tense
Similar spelling:   Istanbul