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.
Is the taste in your mouth like metal? A metallic taste in your mouth is a some what common symptom, and metal tasting is typically not a serious problem. Your perception of a weird metallic mouth taste can be due to an assortment of factors. However, the most common causes of that bad taste of metal in mouth are medications used for treatment of: antibiotics.