isotonic

views updated May 14 2018

i·so·ton·ic / ˌīsəˈtänik/ • adj. Physiol. 1. (of muscle action) taking place with normal contraction.2. denoting or relating to a solution having the same osmotic pressure as some other solution, esp. one in a cell or a body fluid. ∎ (of a drink) containing essential salts and minerals in the same concentration as in the body and intended to replace those lost as a result of sweating during vigorous exercise.DERIVATIVES: i·so·ton·i·cal·ly / -ik(ə)lē/ adv.i·so·to·nic·i·ty / -təˈnisitē/ n.

The Oxford Pocket Dictionary of Current English

isotonic

views updated Jun 08 2018

isotonic (I-soh-ton-ik) adj.
1. describing solutions that have the same osmotic pressure. See osmosis.

2. describing muscles that have equal tonicity. i. exercise see exercise.

A Dictionary of Nursing

isotonic

views updated May 18 2018

isotonic Applied to a cell in which the osmotic pressure is equal to that in the surrounding medium. Compare HYPERTONIC and HYPOTONIC.

A Dictionary of Plant Sciences MICHAEL ALLABY

isotonic

views updated May 21 2018

isotonic Applied to a cell in which the osmotic pressure is equal to that in the surrounding medium. Compare hypertonic and hypotonic.

A Dictionary of Ecology MICHAEL ALLABY

isotonic

views updated May 21 2018

isotonic Solutions with the same osmotic pressure; often refers to a solution with the same osmotic pressure as body fluids. Hypertonic and hypotonic refer to solutions that are more and less concentrated.

A Dictionary of Food and Nutrition DAVID A. BENDER