surgical spirit: methylated spirit used in the practice of medicine (especially for cleansing the skin before injections or before surgery)
methylated spirit: ethyl alcohol denatured with methyl alcohol to prevent its use as an alcoholic beverage
tantra: doctrine of enlightenment as the realization of the oneness of one's self and the visible world; combines elements of Hinduism and paganism including magical and mystical elements like mantras and mudras and erotic rites; especially influential in Tibet