serum

noun
UK: /ˈsɪərəm/
US: /ˈsɪrəm/

  1. The clear, watery fluid part of your blood that remains after the red blood cells and clot-forming components have been removed; it contains antibodies and can be used for various medical tests and treatments.

    1. The lab technician analyzed the blood serum.
    2. The patient received a serum containing vital antibodies to fight the infection.

  2. A liquid substance, often containing antibodies, obtained from the blood of animals or people and used to protect against or treat a disease.

    1. The doctor injected the serum.
    2. Scientists are working to develop an effective serum against the new virus strain.

  3. A cosmetic product, usually a thin liquid, with a high concentration of active ingredients, designed to penetrate the skin quickly and deeply.

    1. She applies face serum every night.
    2. This anti-aging serum promises to reduce the appearance of wrinkles and fine lines.

Synonyms

antiserum plasma

Frequently Asked Questions

The word "serum" in English means: The clear, watery fluid part of your blood that remains after the red blood cells and clot-forming components have been removed; it contains antibodies and can be used for various medical tests and treatments., A liquid substance, often containing antibodies, obtained from the blood of animals or people and used to protect against or treat a disease., A cosmetic product, usually a thin liquid, with a high concentration of active ingredients, designed to penetrate the skin quickly and deeply..

The phonetic transcription of "serum" is /ˈsɪərəm/ in British English and /ˈsɪrəm/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "serum": antiserum, plasma.

Example usage of "serum": "The lab technician analyzed the blood serum.". More examples on the page.