An abnormal condition characterized by an absence of thirst; the lack of desire to drink water or fluids.
From Greek aposia, from a- (without) + posis (drinking), from pinen (to drink). The term describes a pathological absence of thirst sensation.
Aposia is a rare symptom that sometimes appears with certain brain disorders or injuries that damage the thirst center, and it's genuinely dangerous because people can become severely dehydrated without even realizing they're thirsty.
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