respiration

play
noun res·pi·ra·tion \ˌres-pə-ˈrā-shən\

Definition of respiration

  1. 1a :  the movement of air or dissolved gases into and out of the lungsb :  a single complete act of breathing … the patient was cyanotic and unconscious with labored respirations at 40/min. — Dorwyn W. Croom

  2. 2 :  the physical and chemical processes (such as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions

  3. 3 :  cellular respiration

respiratory

play \ˈres-p(ə-)rə-ˌtȯr-ē, ri-ˈspī-rə-\ adjective

Examples of respiration in a sentence

  1. The doctor checked his heartbeat and respiration.

Origin and Etymology of respiration

Middle English respiracioun, from Latin respiration-, respiratio, from respirare


First Known Use: 15th century

Other Physiology Terms


RESPIRATION Defined for English Language Learners

respiration

play
noun res·pi·ra·tion \ˌres-pə-ˈrā-shən\

Definition of respiration for English Language Learners

  • medical : the act or process of breathing


RESPIRATION Defined for Kids

respiration

play
noun res·pi·ra·tion \ˌre-spə-ˈrā-shən\

Definition of respiration for Students

  1. 1 :  the act or process of breathing :  the inhaling of oxygen and the exhaling of carbon dioxide

  2. 2 :  the process by which cells use oxygen to break down sugar and obtain energy


Medical Dictionary

respiration

play
noun res·pi·ra·tion \ˌres-pə-ˈrā-shən\

Medical Definition of respiration

  1. 1a:  the movement of respiratory gases (as oxygen and carbon dioxide) into and out of the lungsb:  a single complete act of breathing 30 respirations per minute

  2. 2:  the physical and chemical processes (as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions

  3. 3:  cellular respiration



Seen and Heard

What made you want to look up respiration? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

holding stubbornly to a belief or view

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • manet-jeanne-spring
  • Which is a synonym of chaffer?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ