1 definition by Dr. Dank Nugget

Grapefruit seed extract (GSE), also known as citrus seed extract, is a liquid derived from the seeds, pulp, and white membranes of grapefruit.

This extract has been stated by some practitioners of alternative medicine to possess antibacterial, antiviral, and anti-fungal properties.2 It has been recommended by some nutritionists for the treatment of candidiasis, earache, throat infections, and diarrhea.

Source: Wikipedia: Grapefruit Seed Extract
Remember to get me a bottle of GSE from the Health Shoppe; I have a bad case of the runs.
by Dr. Dank Nugget June 5, 2009
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