# blood serum

> English word · Noun

## Definitions
1. 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.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/blood-serum