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

Type of: alkali, base

• Pernod
• pernyi moth
• Perodicticus
• Perodicticus potto
• Perognathus
• Perognathus flavescens
• Perognathus flavus
• Perognathus hispidus
• Peromyscus
• Peromyscus eremicus
• Peromyscus gossypinus
• Peromyscus leucopus
• Peromyscus maniculatus
• Peron
• peroneal
• peroneal vein
• peroneus
• Peronospora
• Peronospora destructor
• Peronospora hyoscyami
• Peronospora tabacina
• Peronosporaceae
• Peronosporales
• perorate
• peroration