A brief sudden change in a normally constant quantity: a pulse of current; a pulse of radiation. b. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.
Some pregnant women experience a metallic taste in their mouth during the early stages of pregnancy, because of the hormone changes. It's also fairly common to crave certain foods, or go off certain foods, and have a heightened sense of smell. Learn more about the signs and symptoms of pregnancy.
Metallic Taste in Mouth. Metallic Taste in Mouth, scientifically known as âDysgeusiaâ, is a condition in which the taste of your mouth changes to something very sour and foul. You might feel as if you have something metallic inside your mouth, even when you are not eating anything. The one and only symptom of metallic taste is the continuous presence of a bitter and acidic taste in the mouth.