moisture UK /ˈmɔɪs.t͡ʃə/US /ˈmɔɪs.t͡ʃɚ/ noun3 •That which moistens or makes damp or wet; exuding fluid; liquid in small quantity.drops / beads of moisture •The state of being moist.[…] all Exclusion of Open Aire, (which is euer Predatory) maintaineth the Body in his first Freshnesse, and Moisture: — 1631 •Skin moisture noted as dry, moist, clammy, or diaphoretic as part of the skin signs assessment. formsmoistures