1. An automatic instinctive unlearned reaction to a stimulus
   - reflex, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction

Type of: reaction, response

• Zen Buddhism
• Zen Buddhist
• Zenaidura
• Zenaidura macroura
• zenana
• Zend
• Zend-Avesta
• zenith
• zenithal
• Zeno
• Zeno of Citium
• Zeno of Elea
• zeolite
• zeolitic
• Zeomorphi
• zep
• Zephaniah
• zephyr
• zephyrus
• zeppelin
• Zeppo
• zero
• zero hour
• zero in
• zero point