Relating to or resembling serous membranes, which are thin membranes that cover the organs in the body.
The word serosal is used in scientific or medical contexts to talk about the thin membranes that cover organs.
Examples:
The doctor studied the serosal membrane.
The serosal covering protects the organs.
The serosal layer is very thin.
The serosal membrane is like a blanket for the organs.
The serosal layer is as thin as a piece of paper.
The serosal covering keeps the organs safe.