Home › Words › E › exsiccationexsiccationexsiccation means the act of operation of drying; evaporation or expulsion of moisture.EtymologyBorrowed from Late Latin exsiccatio, exsiccationis, from Latin exsicco: compare French exsiccation.nounThe act of operation of drying; evaporation or expulsion of moisture.e.g.“That which is concreted by exsiccation or expression of humidity, will be resolved by humectification, as earth, dirt and clay.” — 1658, Sir Thomas Browne, Pseudodoxia Epidemica, London: Edward Dod OCLC 216753971Definitions & examples from Wiktionary (CC BY-SA 3.0).