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)

• pappiest
• papping
• pappoose
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• pappus
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• pappy
• paprika
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• paps
• Pap smear
• Pap smear test
• pap-spoon
• pap-spoons
• Pap test
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• Papua New Guinean
• papula
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• papular
• papulation
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• papule