hypotonic[hī′pō tän′ik, -pə-]
- having abnormally low tension or tone, esp. of the muscles
- having an osmotic pressure lower than that of an isotonic solution
- Having less than normal tone or tension, as of muscles or arteries.
- Chemistry Having the lower osmotic pressure of two solutions.
(comparative more hypotonic, superlative most hypotonic)
From hypo- + tonic.