indigestion Meaning, Definition & Usage

  1. noun a disorder of digestive function characterized by discomfort or heartburn or nausea
    dyspepsia; upset stomach; stomach upset.

WordNet

In`di*ges"tion noun
Etymology
L. indigestio: cf. F. indigestion. See In- not, and Digest.
Definitions
  1. Lack of proper digestive action; a failure of the normal changes which food should undergo in the alimentary canal; dyspepsia; incomplete or difficult digestion.

Webster 1913