Hypogeusia

n. impairment of the sense of taste

A reduced ability to taste things (to taste sweet, sour, bitter, or salty substances). The complete lack of taste is referred to as Ageusia.One known cause of hypoguesia is the chemotherapy drug bleomycin, an antitumor antibiotic.
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Hypogeusia /hy·po·geu·sia/ abnormally diminished sense of taste. hy·po·geu·sia n. Impairment of the sense of taste. [more]Hypogeusia - Community and Resources