serum
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serum
- /ˈsɪəɹəm/ UK
- /ˈsiːɹəm/ UK
- /ˈsɪɹəm/ US
- /ˈsiɹəm/ Canada
Rhymes with (UK) -ɪəɹəm, (US) -ɪɹəm
Where it comes from
From Latin serum (“whey”). Cognates include French sérum, Spanish suero, Italian siere, siero, Portuguese soro. Doublet of suero.
noun serums · sera
- Ellipsis of blood serum
-
Blood serum used as a blood product, in the practice of medicine: blood serum from the tissues of immunized animals (human or nonhuman), containing antibodies and used to transfer immunity to another individual (human or nonhuman).
Near-synonym: antiserum
Similar: antiserum
- A watery liquid from animal tissue, especially one that moistens the surface of serous membranes or that is exuded by such membranes when they become inflamed, such as in edema or a blister.
- The watery portion of certain other animal fluids, such as milk; whey.
- A skincare product of varying consistencies with a high concentration of one or more active ingredients, for a targeted purpose, such as preventing acne, repairing sun damage, or moisturizing.
Thesaurus
Closest in meaning: plasm, plasma, serologic, serological, serology, antiserum, vaccine, blood, antitoxin, drug, albumin, saline, whey, testing, antisera, transudate
Translations
Talk about this word "serum." Wiktionary, via Micwyn, micwyn.com/word/serum. Accessed 6 Nov. 2026. serum. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/serum "serum." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/serum.Cite this
@misc{serum_2026,
title = {serum},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/serum},
urldate = {2026-11-06}
}
