Ko te rironga atu o te wai o roto i tētahi mea. He mate nui mēnā ka tauraki te tangata, arā, ka heke te wai o roto i tōna tinana kia kore ai e tutuki ngā mahi a tēnā pūnaha o te tinana, a tēnā. He tukanga rokiroki kai hoki, arā, ka whakamaroke i te wai o roto i te kai kia kore ai e tupu he moroiti, kia kore ai hoki e whakapopo. Mā te whakaeto e tutuki ai te tauraki, hei tauira, mā te whiti o te Rā, te pupuhi o te hau, te rārā ki te auahi rānei.
The removal of water from something. Dehydration is a serious condition in humans, where the level of water in the body falls to a point which is insufficient for normal functioning of the body systems. It is also a method of preserving food, whereby the water content of the food is removed preventing the growth of micro-organisms and decay. Dehydration of food is achieved through evaporation of the water by exposure to the sun, the wind or by smoking.