1. An organic base C3H4N2; a histamine inhibitor
   - imidazole, glyoxaline

Type of: alkali, base

• rachitis
• Rachmaninoff
• Rachmaninov
• Rachycentridae
• Rachycentron
• Rachycentron canadum
• racial
• racial discrimination
• racial extermination
• racial immunity
• racial profiling
• racial segregation
• racialism
• racialist
• racially
• racily
• Racine
• raciness
• racing
• racing boat
• racing car
• racing circuit
• racing gig
• racing shell
• racing skate