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serous

American  
[seer-uhs] / ˈsɪər əs /

adjective

  1. resembling serum; of a watery nature.

  2. containing or secreting serum.

  3. of, relating to, or characterized by serum.


serous British  
/ sɪˈrɒsɪtɪ, ˈsɪərəs /

adjective

  1. of, resembling, producing, or containing serum

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of serous

1585–95; < Medieval Latin serōsus; see serum, -ous

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.

It was acting principal Fergal Friel who described their use by children as school's most serous issue in years.

From BBC • Apr. 3, 2026

The method was applied to reveal resistant cell states against chemotherapy, targeted therapy or innate immunity in high-grade serous ovarian cancer.

From Science Daily • Feb. 12, 2024

A few days later she received a call from the doctors saying that cells believed to be precursors to high-grade serous ovarian cancer were found in one of her removed fallopian tubes.

From New York Times • Feb. 1, 2023

The IMF noted that the world economy still faces serous risks.

From Seattle Times • Jan. 30, 2023

During the latter half of his life Henle’s researches were mainly histological in character, his investigations embracing the minute anatomy of the blood vessels, serous membranes, kidney, eye, nails, central nervous system, &c.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" by Various

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