The Merriam-Webster Dictionary is revising its entry on racism to illustrate the ways in which it can be systemic.

Currently, the dictionary’s entry contains three sections. The first defines racism as “a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race.”

The second calls it a “doctrine or political program based on the assumption of racism and designed to execute its principles” and “a political or social system founded on racism.” The third section refers to “racial prejudice or discrimination.”

Editors are now working on defining racism as not only prejudice against a certain race due to the color of a persons skin, but as both prejudice combined with social and institutional power. It is a system of advantage based on skin color.

The dictionary’s editors were inspired to edit the definition of racism because 22-year-old Kennedy Mitchum, who recently graduated from Drake University, asked them to do so. She lives in Florissant, Missouri, just a few miles away from Ferguson, where protests over the 2014 police shooting of Michael Brown helped solidify the Black Lives Matter movement.