SEROUS
serous
Adjective
- Containing, secreting, or resembling serum; watery; a fluid or discharge that is pale yellow and transparent, usually representing something of a benign nature. (This contrasts with the term sanguine, which means blood-tinged and usually harmful.)
The above text is a snippet from Wiktionary: serous
and as such is available under the Creative Commons Attribution/Share-Alike License.