desiccant

/ˈdɛsɪkənt/
noun
  1. A substance that absorbs moisture from the air or from other materials, used to keep things dry.
    • In humid climates, people often use a desiccant like calcium chloride to prevent mold in closets.
    • To protect the electronics during shipping, the company added a desiccant to the packaging.
    • The small packet of silica gel is a common desiccant found in shoeboxes.
Antonyms
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