the normal tension of a muscle at rest; tone
WordReference Random House Unabridged Dictionary of American English © 2025
to•nus
(tō′nəs),USA pronunciation n. [Physiol.]
- a normal state of continuous slight tension in muscle tissue that facilitates its response to stimulation.
- Greek tónos tone
- Neo-Latin, special use of Latin tonus
- 1875–80
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'tonus' also found in these entries (note: many are not synonyms or translations):