IPA: //ˈdɛsɪkeɪtɪv//
KK: /dɛsɪˈkeɪtɪv/
Causing something to become dry or lose moisture.
The desiccative properties of the substance made it useful for preserving food.
Desiccative → It is formed from "desiccare" (meaning to dry out) and the suffix "-ive" (meaning having the nature of). The word "desiccative" refers to something that has the nature of drying out or causing dryness.
Think of something that 'dries out' ('desiccare') — that's why desiccative means having the quality of causing dryness.