* * *
hy·per·acid·i·ty .hī-pə-rə-'sid-ət-ē n, pl -ties the condition of containing more than the normal amount of acid
hy·per·ac·id .hī-pə-'ras-əd adj
* * *
hy·per·ac·id·i·ty (hi″pər-ə-sidґĭ-te) excessive acidity, particularly in the stomach.Medical dictionary. 2011.