tonus

Definitions of tonus
  1. noun
    the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli
    synonyms: tone, tonicity
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    Antonyms:
    amyotonia, atonia, atonicity, atony
    lack of normal muscular tension or tonus
    types:
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    catatonia
    extreme tonus; muscular rigidity; a common symptom in catatonic schizophrenia
    muscle tone, muscular tonus
    normal tonicity of the muscles
    myotonia
    abnormally long muscular contractions; slow relaxation of a muscle after a contraction
    hypertonia, hypertonicity, hypertonus
    (of muscular tissue) the state of being hypertonic
    hypotonia, hypotonicity, hypotonus
    (of muscular tissue) the state of being hypotonic
    acromyotonia
    myotonia of the extremities only; causes spastic deformity of the hand or foot
    Thomsen's disease, myotonia congenita
    a mild, rare, congenital form of myotonia characterized by muscle stiffness
    type of:
    tautness, tenseness, tension, tensity
    the physical condition of being stretched or strained
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