Meaning of tonicity

to•nic•i•ty

Pronunciation: (tō-nis'i-tē), [key]
— n.
  1. tonic quality or condition.
  2. the state of bodily tone.
  3. the normal elastic tension of living muscles, arteries, etc., by which the tone of the system is maintained.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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