Word of the Day

: October 29, 2025

deliquesce

verb del-ih-KWESS

What It Means

Deliquesce can mean "to dissolve or melt away" or, in reference to some fungal structures (such as mushroom gills), "to become soft or liquid with age or maturity."

// The mushrooms deliquesced into an inky fluid.

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deliquesce in Context

"He would mould his figures in full in wax, then take a hot knife and—like a metaphysical surgeon—cut away triangles, rhomboids, flaps and scraps, until only a latticework was left. These new shapeshifting figures comprised more gaps than joins: bodies in the delicate, arduous process of shedding their skins, scattering into metal petals, being eroded and deliquesced. Things were freshly able to pass through these painstakingly hard-to-cast bronzes: light, air, sight." — Robert Macfarlane, Apollo, 1 May 2025

Did You Know?

Deliquesce comes from the prefix de- ("from, down, away") and a form of the Latin verb liquēre, meaning "to be fluid." Things that deliquesce, it could be said, turn to mush in more ways than one. In scientific contexts, a substance that deliquesces absorbs moisture from the atmosphere until it dissolves in the absorbed water and forms a solution. When plants and fungi deliquesce, they lose rigidity as they age. When deliquesce is used in non-scientific contexts, it is often in a figurative or humorous way to suggest the act of "melting away" under exhaustion, heat, or idleness, as in "teenagers deliquescing in 90-degree temperatures."