cofactor /kō-fakˈtər/

1. A factor which occurs along with other factors in multiplication
2. A nonprotein organic molecule or a metallic ion that binds with an enzyme and is essential to the enzyme's activity (biology)

• Schottky defect
• Schottky effect
• Schottky noise
• schout
• schouts
• schrecklich
• Schrecklichkeit
• schreech-owl
• Schrödinger equation
• schtick
• schticks
• schtik
• schtiks
• schtook
• schtooks
• schtoom
• schtuck
• schtucks
• schtum
• schuit
• schuits
• schul
• schuln
• schuls
• schuss