external respiration

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• external respiration — n. exchange of oxygen and carbon dioxide across external or respiratory surfaces, as gills or lungs, in multicellular organisms: cf. INTERNAL RESPIRATION * * * …   Universalium

• external respiration — n exchange of gases between the external environment and a distributing system of the animal body (as the lungs of higher vertebrates or the tracheal tubes of insects) or between the alveoli of the lungs and the blood compare INTERNAL RESPIRATION …   Medical dictionary

• external respiration — n. exchange of oxygen and carbon dioxide across external or respiratory surfaces, as gills or lungs, in multicellular organisms: cf. INTERNAL RESPIRATION …   English World dictionary

• external respiration — noun the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation • Syn: ↑breathing, ↑respiration, ↑ventilation • Derivationally related forms: ↑respire (for:… …   Useful english dictionary

• external respiration — noun Date: 1940 exchange of gases between the external environment and a distributing system of the animal body (as the lungs of higher vertebrates or the tracheal tubes of insects) or between the alveoli of the lungs and the blood compare… …   New Collegiate Dictionary

• external respiration — The process of gaseous exchange between an organism and its environment …   Dictionary of invertebrate zoology

• Respiration — Res pi*ra tion (r?s p?*r? sh?n), n. [L. respiratio: cf. F. respiration. See {Respire}.] 1. The act of respiring or breathing again, or catching one s breath. [1913 Webster] 2. Relief from toil or suffering: rest. [Obs.] [1913 Webster] Till the… …   The Collaborative International Dictionary of English

• Respiration — is the act of inhaling and exhaling air in order to exchange oxygen for carbon dioxide. * * * 1. A fundamental process of life, characteristic of both plants and animals, in which oxygen is used to oxidize organic fuel molecules, providing a… …   Medical dictionary

• respiration — respirational, adj. /res peuh ray sheuhn/, n. 1. the act of respiring; inhalation and exhalation of air; breathing. 2. Biol. a. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells,… …   Universalium

• Respiration — In biochemistry, respiration may refer to: *Cellular respiration, the process in which the chemical bonds of energy rich molecules such as glucose are converted into energy usable for life processes *Aerobic respiration, a process that allows… …   Wikipedia

• respiration — n. the process of gaseous exchange between an organism and its environment. This includes both external respiration, which involves breathing, in which oxygen is taken up by the capillaries of the lung alveoli and carbon dioxide is released from… …   The new mediacal dictionary