1. A coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes
   - nicotinamide adenine dinucleotide

Type of: coenzyme

Encyclopedia: NAD

• family Scolopacidae
• family Scolytidae
• family Scomberesocidae
• family Scombresocidae
• family Scombridae
• family Scorpaenidae
• family Scrophulariaceae
• family Scutigeridae
• family Scyliorhinidae
• family Secotiaceae
• family Selaginellaceae
• family Sepiidae
• family Septobasidiaceae
• family Serranidae
• family Sialidae
• family Sillaginidae
• family Siluridae
• family Simaroubaceae
• family Simuliidae
• family Sirenidae
• family Sisyridae
• family Sittidae
• family Solanaceae
• family Soleidae
• family Solenidae