
n., pl., se·rums, or se·ra (sîr'ə).
- The clear yellowish fluid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot. Also called blood serum.
- Blood serum from the tissues of immunized animals, containing antibodies and used to transfer immunity to another individual.
- Watery fluid from animal tissue, such as that found in edema.
- Whey.
[Latin, whey, serum.]










