ef·​flo·​resce | \ ˌe-flə-ˈres How to pronounce effloresce (audio) \
effloresced; efflorescing

Definition of effloresce

intransitive verb

1 : to burst forth : bloom
2a : to change to a powder from loss of water of crystallization
b : to form or become covered with a powdery crust bricks may effloresce owing to the deposition of soluble salts

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Synonyms for effloresce


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Examples of effloresce in a Sentence

created an artificial environment in which plants grew and effloresced regardless of season
Recent Examples on the Web Within days of an eruption, white bacterial mats effloresce like dustings of snow, blizzardings dancing in the currents. Sabrina Imbler, The Atlantic, "An Epic Journey to Adulthood Begins in the Intestines of a Deep-Sea Fish," 16 Feb. 2021 Republican nominee Marc Molinaro would no doubt want to mention the corruption that has effloresced on Mr. Cuomo’s watch, the lousy upstate economy, and the decline of New York City’s subways. The Editorial Board, WSJ, "No Debate in New York State," 21 Oct. 2018 Cherry blossoms effloresced on collars and scarves. Isaac Oliver, New York Times, "Going (Nearly) Bare for a Good Cause," 5 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'effloresce.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of effloresce

1775, in the meaning defined at sense 1

History and Etymology for effloresce

Latin efflorescere, from ex- + florescere to begin to blossom — more at florescence

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Time Traveler for effloresce

Time Traveler

The first known use of effloresce was in 1775

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Cite this Entry

“Effloresce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/effloresce. Accessed 9 May. 2021.

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More Definitions for effloresce


intransitive verb
ef·​flo·​resce | \ ˌef-lə-ˈres How to pronounce effloresce (audio) \
effloresced; efflorescing

Medical Definition of effloresce

: to change to a powder from loss of water of crystallization

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