English Lexicon

Catabolism

/kəˈtæb.ə.lɪ.zəm/
nounCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The metabolic process by which complex molecules are broken down into simpler ones, often releasing energy in the process.

    "During exercise, catabolism provides the energy needed for muscle contraction."
  2. 2

    A phase of metabolism that involves the degradation of substances within the body.

    "Catabolism is essential for maintaining energy balance in living organisms."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'catabolism' originates from the Greek word 'katabole', meaning 'a throwing down'. It was first used in the late 19th century in the context of biochemistry to describe the metabolic processes that break down molecules into smaller units, releasing energy.

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