Abnormality or variation in tension or tonus. ... Origin: hetero-+ G. Tonos, tension ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
heterotonous, heterotonously, heterotonia, heterotonic 1. Having different or unlike tones. 2. A state characterized by variations in tension or tone; as in neurology. Found on http://www.wordinfo.info/words/index/info/view_unit/2790/7