noun a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture).
— synonyms: desiccant, drying_agent, siccative
noun an appliance that removes moisture.
— synonyms: dryer
Examples
“The sun and a northwesterly wind are great driers of the earth.”
“This towel's dry. Could you wet it and cover the chicken so it doesn't go dry as it cooks?”