n.1. Abnormally high alkalinity of the blood and body tissues caused by an excess of bicarbonates, as from an increase in alkali intake, or by or a deficiency of acids other than carbonic acid, as from vomiting. Also called metabolic alkalosis.
2. Abnormally high alkalinity of the blood and body tissues caused by a deficiency of carbon dioxide due to hyperventilation. Also called respiratory alkalosis.