Also found in: Thesaurus, Medical, Encyclopedia.


Absence of hydrochloric acid in the gastric secretions of the stomach.

a·chlor·hy′dric (-drĭk) adj.


relating to a lack of gastric hydrochloric acid
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.achlorhydric - lacking hydrochloric acid
References in periodicals archive ?
Nonetheless, parenthetically, previous investigations have shown that approximately 50% patients with celiac disease (CD), dermatitis herpetiformis (DH), or tropical sprue were hypochlorhydric or achlorhydric (7) (Table 6.4; P.
Studies that have looked at gastric acid production as a function of blood type have yielded conflicting results, (2) and some type 0 individuals have been found to be achlorhydric (i.e., they produce no stomach acid).
When the nasogastric route is used, a PPI should be administered for 24 48 hours prior to transplantation to render the stomach achlorhydric and increase survival of the new organisms.