organismi kuivamine vee mitteküllaldase saamise või liigse kaotuse tagajärjel, organismi kuivamine, seisund, kus kehas ei ole vajalikus koguses vett ja vedelikke ning seetõttu on häiritud organismi normaalne talitus, a state in which there is less than the normal volume of water present in the tissue or organism, loss of body water and fluids, with consequent disturbances of the biological balance, caused by insufficient fluid intake or by excessive fluid loss, through shock, metabolic disease or by a combinat