The terms citizen science and community science are often used interchangeably to describe public participation in scientific research. However, their meanings have evolved over time.

Originally, citizen science referred to projects where non-professional volunteers, such as hobbyists or students, collected data to help professional scientists. These projects were typically designed and led by the scientists.

In contrast, community science originally referred to research initiated by and for a specific community, with scientists serving in a supporting role. It could also describe citizen science projects that focused on local issues.

Today, the two terms are often blended to emphasize a more collaborative and inclusive approach. This modern definition highlights a partnership between scientists and individuals from all backgrounds who work together to investigate a common scientific interest. This is the definition we use for the Community Science Collaborative of Saint Louis.