The crossword solutions for the term OXIDANT FRONT are ANTI, which stands for 'AGAINST'. Oxidant Front is a term used to describe a type of air pollution caused by the presence of ozone in the atmosphere. It occurs when pollutants from cars, factories, and other sources react with sunlight and create ozone. The ozone layer acts as a barrier AGAINST ultraviolet radiation from the sun, but when it is depleted, it can cause health problems and damage to the environment.