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a physiologic variation or increase of a certain constituent in body fluids.
acid tide a temporary increase in the acidity of the urine that sometimes follows fasting.
alkaline tide a temporary increase in the alkalinity of the urine during gastric digestion.
fat tide the increase of a fat in the lymph and blood following a meal.
a period of urinary neutrality or even alkalinity after meals, resulting from withdrawal of hydrogen ion for the purpose of secretion of the highly acid gastric juice.
Synonym(s): alkaline wave
alkaline tideA transient postprandial increase in blood and urine pH, related to sequestration of H+ ions by the stomach during early digestion.
al·ka·line tide(al'kă-lin tīd)
A period of urinary neutrality or even alkalinity after meals due to withdrawal of hydrogen ions for secretion of highly acid gastric juice.