| Noun | 1. | xerostomia - abnormal dryness of the mouth resulting from decreased secretion of saliva Synonyms: dry mouth |
Dry mouth. The condition can be caused by a number of things, including rheumatoid arthritis, diabetes, kidney failure, infection with HIV (the virus that causes AIDS), drugs used to treat depression, and radiation treatment for mouth or throat cancer.
dry mouth, dryness, waterlessness, xerotes