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Definition of Tonicity
1. Noun. The elastic tension of living muscles, arteries, etc. that facilitate response to stimuli. "The doctor tested my tonicity"
Category relationships: Muscle, Muscular Tissue
Generic synonyms: Tautness, Tenseness, Tension, Tensity
Specialized synonyms: Catatonia, Muscle Tone, Muscular Tonus, Myotonia, Hypertonia, Hypertonicity, Hypertonus, Hypotonia, Hypotonicity, Hypotonus
Derivative terms: Tone, Tonic, Tonic
Antonyms: Atonicity
Definition of Tonicity
1. n. The state of healthy tension or partial contraction of muscle fibers while at rest; tone; tonus.
Definition of Tonicity
1. Noun. (medicine) The normal presence of tone or tension in a muscle or organ; tonus ¹
2. Noun. (science) The ability of a solution to exert an osmotic pressure upon a membrane ¹
¹ Source: wiktionary.com
Definition of Tonicity
1. normal, healthy bodily condition [n -TIES]
Medical Definition of Tonicity
1. 1. A state of normal tension of the tissues by virtue of which the parts are kept in shape, alert, and ready to function in response to a suitable stimulus. In the case of muscle, it refers to a state of continuous activity or tension beyond that related to the physical properties; i.e., it is active resistance to stretch; in skeletal muscle it is dependent upon the efferent innervation. Synonym: tonus. 2. The osmotic pressure or tension of a solution, usually relative to that of blood. See: isotonicity. Origin: G. Tonos, tone (05 Mar 2000)
Lexicographical Neighbors of Tonicity
Literary usage of Tonicity
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Text-book of Physiology for Medical Students and Physicians by William Henry Howell (1911)
"The tonicity of the Heart Muscle.—In describing the physiology of skeletal and
plain muscle attention was called to their property of tonicity,—that ..."
2. A Text-book of Physiology: For Medical Students and Physicians by William Henry Howell (1915)
"The tonicity of the Heart Muscle.—In describing the physiology of skeletal and
plain muscle attention was called to their property of tonicity,—that ..."
3. A Text-book of physiology for medical students and physicians by William Henry Howell (1913)
"The tonicity of the Heart Muscle.—In describing the physiology of skeletal and
plain muscle attention was called to their property of tonicity,—that ..."
4. A Text-book of Physiology for Medical Students and Physicians by William Henry Howell (1911)
"tonicity or tonic activity is therefore characteristic of the motor nerve centers,
and is due, no doubt, to a more or less continuous inflow of sensory ..."
5. Diseases of the Heart by James Mackenzie (1910)
"The function of tonicity. 184. The symptoms of depression of tonicity. ...
The recognition of depression of tonicity will be found to be of the greatest ..."
6. Diseases of the spinal cord by Byrom Bramwell (1886)
"In cases of spinal cord disease the tonicity of the muscles may be normal, ...
Flaccidity or Diminished tonicity. It may be stated as a general rule, ..."
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