tonicity

from WordNet (r) 3.0 (2006)

tonicity
    n 1: the elastic tension of living muscles, arteries, etc. that
         facilitate response to stimuli; "the doctor tested my
         tonicity" [syn: {tonicity}, {tonus}, {tone}] [ant:
         {amyotonia}, {atonia}, {atonicity}, {atony}]

from The Collaborative International Dictionary of English v.0.48

Tonicity \To*nic"i*ty\, n. (Physiol.)
   The state of healthy tension or partial contraction of muscle
   fibers while at rest; tone; tonus.
   [1913 Webster]

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