isometric
Pronunciation: /ʌɪsə(ʊ)ˈmɛtrɪk/
adjective
- 2 Physiology relating to or denoting muscular action in which tension is developed without contraction of the muscle.

Derivatives

Origin:
mid 19th century: from Greek isometria 'equality of measure' (from isos 'equal' + -metria 'measuring') + -ic