respiration

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

Definition of respiration

  1. 1 a :  the placing of air or dissolved gases in intimate contact with the circulating medium of a multicellular organism (as by breathing) b :  a single complete act of breathing

  2. 2 :  the physical and chemical processes 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 :  any of various energy-yielding oxidative reactions in living matter

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

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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

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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



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