tonicity: Meaning and Definition of
to•nic•i•ty
Pronunciation: (tō-nis'i-tē), [key]
— n.
- tonic quality or condition.
- the state of bodily tone.
- 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.