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to respire

to respire

1 6.0
To breathe in and out to take in oxygen and let out carbon dioxide
  • verb
  • /rɪˈspaɪər/
translation icon : respirar
  • Samples from the least thawed sites respired about 5 percent old carbon, Schuur says, while at the most thawed sites that number was as high as 15 percent.
  • animals respire
  • plants respire
  • respire more

They do that because at night the plants have have just grown to know that when they respire out oxygen and water, they do that at night so they don't dehydrate.

Examples

  • His goal is to isolate the carbon that the plants and roots respire and to date it.

    Academic text (2008)
  • As these plants respire, die, and decompose, oxygen in the water is depleted, suffocating fish and other animals.

    Academic text (1998)
  • Trees respire more at higher temperatures, so they lose carbon when nights are warmer than average.

    Blog text (20)
  • The samples continue to respire for a while inside their jars.

    Academic text (2008)
  • Fresh-cut fruits and vegetables are alive, and different varieties respire at different rates.

    Academic text (2006)
  • Trees stabilize soil, capture and respire water, provide shade, and enable permanent stream and river formation.

    Blog text (1)
  • Even if forests throughout the tropics grow less and respire more in the hot years to come, they remain an irreplaceable storage bank for carbon.

    Academic text (2007)
  • Because biological systems all respire and generate CO2, and volcanic/tectonic processes are unlikely to stop in the next billion years.

    Blog text (4)
  • Most of the carbon stored in tropical forests lies beneath the earth, in live roots that grow and respire, in the rich detritus of fallen leaves and wood that feed soil microbes, and locked in the soil itself.

    Academic text (2007)
  • Plants respire by taking in oxygen and releasing carbon dioxide during the day.

Synonyms

to breathe
vsto respire
1.0

To take air into the lungs and let it out

is used in biological contexts to mean gas exchange at cellular level

Antonyms

81 6.1

To have no air to breathe or to stop someone from getting air

How Deep

to respire
1 6.0

Surface Forms

respire infinitive
respired past
respired past participle
respiring present participle
respires third person singular

Morphology

respire = re + spir

Formally analyzable as re- + spir (to breathe), and the root appears in related words (respiration, inspire), but 'spir' is not a standalone English word so an average B1 learner may not reliably derive the meaning from the parts.

Etymology

Respire comes from the Latin parts re- ('again') and spirare ('to breathe'), so it originally meant 'breathe again'. You can see the same root in inspire, which helps explain why respire today simply means to breathe in and out.