noun
respiration
CEFR B2
the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs
In a sentence
Six example sentences with respiration, each labelled with its topic.
Yeast switches to anaerobic respiration when the flask is sealed, and the bubbling in the airlock slows noticeably.
Science
A pulse oximeter clipped to the finger let the nurse chart respiration alongside heart rate every fifteen minutes.
Medicine
At altitude the climbers measured respiration during rest, comparing readings from base camp with those on the ridge.
Fitness
Soil respiration releases carbon dioxide as microbes break down leaf litter, and warmer autumns speed the process up.
Environment
Fruit continues respiration after picking, burning its own sugars, which is why cold storage keeps apples crisp for months.
Cooking
Lavoisier showed in the 1780s that respiration is slow combustion, measuring the heat a guinea pig gave off in an ice chamber.
History
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Found in these word lists
Found in 4 published word lists
- Science Vocabulary ListAuthoritative
- Science Word ListAuthoritative
- 5000 GRE Words (widely used study list)Recognized
- GRE Word List 4700 (widely used study list)Recognized
Each source is a published word list that contains respiration. No exam board publishes an official GRE, GMAT or SAT list; GMAT words come from GRE lists and the Academic Word List.