- A pathologic condition resulting from accumulation of acid or depletion of the alkaline reserve (bicarbonate) content of the blood and body tissues, and characterized by an increase in hydrogen ion concentration (decrease in pH). (Dorland, 27th ed)
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- An abnormally high acidity (excess hydrogen-ion concentration) of the blood and other body tissues.
Definition from: NCI Thesaurus via Unified Medical Language System at the National Library of Medicine
See also Understanding Medical Terminology.