1. the process of breathing; inhaling and exhaling air
2. the biological process by which living organisms take in oxygen and release carbon dioxide
Usage: biology
3. the process by which cells break down glucose and other molecules to produce energy
Usage: biology; cellular respiration

Examples

• The doctor monitored the patient’s respiration during surgery.
• Heavy exercise increases your rate of respiration.
• Plants perform respiration at night when photosynthesis stops.
• The nurse counted twenty breaths per minute during respiration assessment.
• Cellular respiration occurs in the mitochondria of cells.
• Cold weather made his respiration visible as small clouds of vapor.
• The yoga instructor taught deep respiration techniques for relaxation.