Medical Definition of desiccate
1: to dry up or cause to dry up : deprive or exhaust of moisture; especially : to dry thoroughly <uses radio frequencies of 100,000 Hz to 10,000,000 Hz to cut, coagulate, and desiccate tissue—Bettyann Hutchisson et al>
2: to preserve a food by drying : dehydrate <desiccated coconut>
: to become dried up : undergo a desiccating process
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