This document defines and provides examples for 5 medical and science-related root words: Manu means hand and is seen in words like maneuver and manuscript; Mater means mother and appears in words like maternal and matriarchy; Micro means small and is found in words like microbe, microchip, and microscope; Ortho means straight and is used in orthodontist and orthopedic; Path means feeling or emotion and is used in apathy, antipathy, and empathy. Sentences are included as examples for the definitions of each root word.