- present participle of thicken.
noun
-
something added to a liquid to thicken it
-
a thickened part or piece
Etymology
Origin of thickening
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For hypertrophic cardiomyopathy—the thickening of heart muscles—it was 56 steps.
From The Wall Street Journal • Apr. 19, 2026
The team found that visceral fat was consistently associated with plaque buildup and artery wall thickening, while liver fat had a smaller but still important effect.
From Science Daily • Oct. 23, 2025
These polar "geoengineering" techniques aim to cool the planet in unconventional ways, such as artificially thickening sea-ice or releasing tiny, reflective particles into the atmosphere.
From BBC • Sep. 9, 2025
They gather shortly after daybreak outside a minimarket, the tropical heat thickening, the dawn haze in lethargic retreat.
From Los Angeles Times • Mar. 21, 2025
It was not so much clouding up as thickening, somehow, from every direction at once, the blank blue gone to haze.
From "Tuck Everlasting" by Natalie Babbit
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.