a·geu·si·a 
(ə-gyzē-ə, -zhē-ə, -zhə)
(ə-gyzē-ə, -zhē-ə, -zhə)n.
Loss of the sense of taste.
[New Latin : Greek a-, without; see A-1 + geusis, sense of taste (from geuesthai, to taste; see geus- in the Appendix of Indo-European roots).]
a·geusic (-zĭk, -sĭk) adj.