Tonus

noun

Definitions

Noun
  1. 1
    tonicity; tone countable, uncountable

    "muscular tonus"

  2. 2
    the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli wordnet
  3. 3
    A tonal system or mode used in Gregorian chant. countable, uncountable

    "Aurelian associates antiphons and toni of the plain chant, so that the octave-based Pythagorean scale is exemlified by means of the liturgical chant, with the outstanding consequence that church music becomes the sounding representation of the harmony of the spherese and of human beings."

Etymology

Borrowed from Latin tonus (“strain, tension”). Doublet of tone.

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