blood serum

See also: bloodserum

English

Blood testing tube with separated blood serum (yellow) and erythrocytes (dark red).

Alternative forms

• bloodserum (dated)

Noun

blood serum (countable and uncountable, plural blood serums or blood sera)

1. (biology, medicine) The portion of whole blood that is not blood cells and not clotting factors; it can be separated as a clear yellowish liquid after the blood has been allowed to clot.

   Synonym: serum (ellipsis)

   Holonyms: plasma, blood plasma < blood

   Comeronyms: blood cells, red blood cells, white blood cells, platelets; clotting factors