Definition of Tonicity

1. Noun. The elastic tension of living muscles, arteries, etc. that facilitate response to stimuli. "The doctor tested my tonicity"

Exact synonyms: Tone, Tonus
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)

Tonicity Pictures

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Lexicographical Neighbors of Tonicity

tonic control
tonic convulsion
tonic epilepsy
tonic key
tonic pupil
tonic reflex
tonic seizure
tonic solfa
tonic spasm
tonic water
tonic waters
tonical
tonically
tonicicty
tonicities
tonicity (current term)
tonicization
tonicizations
tonicize
tonicized
tonicizes
tonicizing
tonick
tonicks
tonicoclonic
tonics
tonier
tonies
toniest
tonight

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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