1. A reflex that expels intestinal gas through the anus
   "His constant flatus was both embarrassing and amusing to his friends";
   - wind, breaking wind, poot [US, informal], flatulence

Derived forms: flatuses

Type of: inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex

Encyclopedia: Flatus