hydrogel
/ˈhaɪdroʊˌdʒɛl/
noun
- A soft, jelly-like material that can hold a lot of water, used in things like contact lenses, diapers, and medical bandages.
- Some gardeners use hydrogel crystals in soil to help plants retain water.
- Soft contact lenses are made from a hydrogel that lets oxygen reach the eye.
- The doctor applied a hydrogel bandage to the burn to keep it moist.