Isotonic

[,aisәu'tɒnik]

(adj.) of or involving muscular contraction in which tension is constant while length changes .

(adj.) (used of solutions) having the same or equal osmotic pressure .

(adj.) of two or more muscles; having equal tension .

(adj.) relating to or characterized by the equal intervals of a musical scale; 'isotonic tuning' .

Typed by Abe--From WordNet

(a.) Having or indicating, equal tones, or tension.

Checker: Nona

adj. having equal tones.

Checker: Prudence