se·​rous | \ ˈsir-əs How to pronounce serous (audio) \

Definition of serous

: of, relating to, or resembling serum especially : of thin watery constitution a serous exudate — see also serous fluid

Examples of serous in a Sentence

Recent Examples on the Web Exudative or serous retinal detachment (SRD) is rare type of retinal detachment, which occurs when fluid accumulates under your retina and pushes it away from the blood vessels. Bruce Y. Lee, Forbes, 9 Apr. 2022 Elevated cortisol also increases the risk of central serous chorioretinopathy (CSCR), Rosenthal said. Washington Post, 17 Dec. 2021 Less common types of endometrial adenocarcinomas include: clear-cell carcinoma, mucinous adenocarcinoma, undifferentiated carcinoma, dedifferentiated carcinoma, and serous adenocarcinoma, per ACS. Jenny Mccoy,, 2 Feb. 2022 The veteran political operative is a high-profile hire for MSNBC, and a sign that the cable news outlet is serous about investing in streaming. Alex Weprin, The Hollywood Reporter, 10 Jan. 2022

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

First Known Use of serous

15th century, in the meaning defined above

History and Etymology for serous

Middle English cerose, serose, serous, borrowed from Medieval Latin serōsus, from Latin serum "whey, wheylike fluid" + -ōsus -ous — more at serum entry 1

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The first known use of serous was in the 15th century

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serous fluid

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Last Updated

21 Apr 2022

Cite this Entry

“Serous.” Dictionary, Merriam-Webster, Accessed 27 May. 2022.

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More Definitions for serous


se·​rous | \ ˈsir-əs How to pronounce serous (audio) \

Medical Definition of serous

: of, relating to, producing, or resembling serum especially : having a thin watery constitution a serous exudate

More from Merriam-Webster on serous

Britannica English: Translation of serous for Arabic Speakers


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