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Merriam-Webster's Word of the Day

deliquesce

Merriam-Webster's Word of the Day

Merriam-Webster

Language Courses, Education, Arts, Literature

4.51.3K Ratings

🗓️ 29 October 2025

⏱️ 2 minutes

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Summary

Merriam-Webster's Word of the Day for October 29, 2025 is:

deliquesce • \del-ih-KWESS\  • verb

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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Examples:

"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."



Transcript

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0:00.0

It's the Word of the Day for October 29th.

0:12.0

Today's word is deliques spelled D-E-L-I-Q-U-E-S-C-E.

0:19.0

Deliques is a verb. It can mean to dissolve or melt away, or in reference to some

0:25.2

fungal structures such as mushroom gills, it can mean to become soft or liquid with age or maturity.

0:32.3

Here's the word used in a sentence from Apollo by Robert McFarlane. He would mold his figures in full in wax,

0:39.8

then take a hot knife and, like a metaphysical surgeon, cut away triangles, rhomboids, flaps,

0:46.5

and scraps until only a latticework was left. These new shape-shifting figures comprised

0:53.1

more gaps than joins.

0:55.0

Bodies in the delicate arduous process of shedding their skins,

0:59.0

scattering into metal petals, being eroded and deliquesque.

1:05.0

Things were freshly able to pass through these painstakingly hard-to-cast bronzes, light-air, sight.

1:13.3

The word deliquesquez comes from the prefix D-DE, meaning from, down, or away,

1:19.4

and a form of the Latin verb, liqueuré, meaning to be fluid. Things that deliquesqueous, it could be said,

1:26.6

turn too much in more ways than one.

1:29.4

In scientific contexts, a substance that deliquesces absorbs moisture from the atmosphere

1:34.7

until it dissolves in the absorbed water and forms a solution.

1:40.0

When plants and fungi deliques, they lose rigidity as they age.

1:45.0

When deliquesquees is used in non-scientific contexts, it's often in a figurative or humorous way

1:51.0

to suggest the act of melting away under exhaustion, heat, or idleness, as in teenagers deliquescing in 90-degree temperatures.

2:00.0

With your word of the day, I'm Peter Sokimoski.

2:06.0

Visit Miriamwebster.com today for definitions, wordplay, and trending word lookups.

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