Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Normal firmness or functional readiness in body tissues or organs.
  • n. The sustained partial contraction of resting or relaxed muscles.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The normal presence of tone or tension in a muscle or organ; tonus
  • n. The ability of a solution to exert an osmotic pressure upon a membrane

from the GNU version of the Collaborative International Dictionary of English

  • n. The state of healthy tension or partial contraction of muscle fibers while at rest; tone; tonus.

from The Century Dictionary and Cyclopedia

  • n. In zoology, occasionally employed to denote the quality of dead, as well as living, tissue.
  • n. Tone; the state or property of possessing tone or of being tonic; specifically, in physiol; the elasticity of living parts—a property of the muscles which is distinct from true irritability, and determines the general tone of the solids.
  • n. In music. See the quotation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli

Etymologies

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