Related Clues:

• Glandular output
• Source of DNA evidence, often
• Spit
• It may be on the tip of your tongue
• DNA source, often
• Pavlovian production
• Drool, basically
• Mouth watering?
• DNA source, sometimes
• Pavlovian secretion
• Matter that is spat out
• Liquid secreted in the mouth
• Mouth moisture
• Liquid that moistens the mouth
• It moistens the mouth