tonus

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noun to·nus \ˈtō-nəs\

Definition of tonus

  1. :  tone 9b; especially :  a state of partial contraction characteristic of normal muscle

Origin and Etymology of tonus

New Latin, from Latin, tension, tone


Medical Dictionary

tonus

play
noun to·nus \ˈtō-nəs\

Medical Definition of tonus

  1. 1:  tone 2a

  2. 2:  a state of partial contraction that is characteristic of normal muscle, is maintained at least in part by a continuous bombardment of motor impulses originating reflexly, and serves to maintain body posture—called also muscle tone; compare clonus

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