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.
3. Get help from a doctor now âº. They can: Iron supplements can cause a metallic taste in your mouth. There are also many other causes. Vitamin deficiencies, periodontal disease, medications, hormonal changes, diabetes and other metabolic diseases can also cause this....Read more.. Get help from a doctor now âº. They can: Iron supplements can cause a metallic taste in your mouth. There are also many other causes. Vitamin deficiencies, periodontal disease, medications, hormonal changes, diabetes and other metabolic diseases can also cause this.