serum — meaning in English

English meaning

• serum noun A thin, lightweight skincare product, usually applied after cleansing and before a heavier cream, formulated to carry a high proportion of active ingredients in a small amount of liquid.

Senses

serum is used for these senses in English:

• 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).

serum — full definition

1. noun A thin, lightweight skincare product, usually applied after cleansing and before a heavier cream, formulated to carry a high proportion of active ingredients in a small amount of liquid.
2. noun In medicine, the clear pale fluid that separates from blood when it clots, containing no cells and no clotting proteins. It is the part of a blood sample many laboratory tests are run on.
3. noun A preparation made from the blood of a person or animal that carries antibodies, given to provide immediate protection against a poison or infection.