Respiration Definition

rĕspə-rāshən
noun
Act or process of respiring; breathing; inhaling and exhaling air.
Webster's New World
An act of inhaling and exhaling; a breath.
American Heritage Medicine
The action or process by which an organism without lungs, such as a fish or plant, exchanges gases with its environment.
American Heritage Medicine
The processes by which a living organism or cell takes in oxygen from the air or water, distributes and utilizes it in oxidation, and gives off products of oxidation, esp. carbon dioxide.
Webster's New World
An analogous process in anaerobic organisms involving some substance other than free oxygen.
Webster's New World
Synonyms:

Other Word Forms of Respiration

Noun

Singular:
respiration
Plural:
respirations

Origin of Respiration

  • Middle English respiracioun, from Latin respiratio, from respirare.

    From Wiktionary

Respiration Sentence Examples

  • Reluctantly she pulled away, her pulse and respiration in a race.

  • Its function is less that of respiration than of FIG.

  • Terrestrial plants have a gaseous interchange of oxygen and carbon dioxide which is necessary for respiration and feeding.

  • He also studied the chemistry of combustion and of respiration, and made experiments in physiology, where, however, he was hampered by the "tenderness of his nature" which kept him from anatomical dissections, especially of living animals, though he knew them to be "most instructing."

  • The least wind raises clouds of fine dust, which fill the air, render it so opaque as to obscure the noonday sun, and make respiration difficult.

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Words Starting With

RRERES

Words Ending With

NONION

Unscrambles

respiration

Words Starting With R and Ending With N

Starts With R & Ends With NStarts With RE & Ends With NStarts With R & Ends With ON

Word Length

11 Letter Words11 Letter Words Starting With R11 Letter Words Ending With N