dehydration

Definition dehydration

dehydrationhol: dehydration n. 1. loss or deficiency of water in body tissues. The condition may result from inadequate water intake and/or from excessive removal of water from the body; for example by sweating, vomiting or diarrhoea. Symptoms include great thirst, nausea, and exhaustion. The condition is treated by drinking plenty of water; severe cases require intravenous administration of water and salts (which have been lost with the water). 2. the removal of water from tissue during its preparation for microscopial study, by placing it successively in stronger solutions of ethyl alcohol. Dehydration follows *fixation and precedes *clearing.