The term 'glucose regulator' refers to the hormone INSULIN, which is a seven-letter word. INSULIN is a hormone produced by the pancreas that helps regulate the amount of glucose in the bloodstream. It works by stimulating cells to absorb glucose from the bloodstream, thus lowering blood sugar levels. INSULIN also helps the body store glucose for energy and prevents it from being released too quickly. Without INSULIN, the body would not be able to properly regulate glucose levels, leading to serious health problems.