tonus Meaning, Definition & Usage

  1. noun the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli
    tonicity; tone.
    • the doctor tested my tonicity

WordNet

To"nus noun
Etymology
L. a sound, tone. See Tone.
Definitions
  1. (Physiol.) Tonicity, or tone; as, muscular tonus.

Webster 1913