noun
- a watery discharge from the mucous membranes, especially of the eyes or nose
Usage: medical; formal
Examples
- The cold caused rheum to collect in the corners of her eyes.
- He wiped away the rheum that had formed overnight.
- The doctor explained that the rheum was a normal response to the irritation.
- Morning rheum made it difficult to open his eyes fully.
- The allergy medication helped reduce the excessive rheum from her nose.