Dictionary

noun

Definitions

1. The clear yellowish liquid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot.

   Synonyms:blood serum

2. Blood serum from the tissues of immunized animals, containing antibodies and used to transfer immunity to another individual, called antiserum.

3. 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.

4. The watery portion of certain animal fluids like blood, milk, etc; whey.