sequester

sih-KWES-ter /sɪˈkwestə(r)/
verbC1GRETOEFL
scientifictechnical

To isolate or hide away; in environmental science, to trap and store carbon dioxide.

It implies a long-term or permanent storage, often through natural processes like forest growth or technological ones like underground injection.

The story behind the word. Originally a legal term from the Latin 'sequester' (a trustee or mediator). If two people had a dispute over property, they would 'sequester' it by giving it to a third party until the case was settled.

Word relationships

  • isolate: Isolate is more general; sequester often implies a legal or technical removal from general circulation.
  • release: Release is the act of letting go, while sequester is the act of locking away.

Commonly confused with

  • segregate: Segregate means to separate groups, while sequester means to hide or store something away entirely.

Word family

  • sequestration (noun): The action of sequestering.

Collocations

  • carbon sequestration
  • sequester carbon
  • sequestered in soil

Example sentences

  • "Plants sequester carbon dioxide from the atmosphere through photosynthesis, storing it in their biomass." Scientific explanation of natural carbon sinks.

Memory hook

Think of 'Secret-er'—you are keeping the carbon in a 'secret' place where it can't hurt the atmosphere. Locking carbon away.

When not to use

Don't use it for temporary storage; it implies a deliberate act of setting something aside for safety or isolation.

Fun facts

  • In law, a jury can be 'sequestered,' meaning they are kept away from the public and media to prevent outside influence.

Related words

abatement, mitigate

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