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to decompose

to decompose

9 5.5
To break a substance into smaller chemical parts using heat or chemicals
  • verb
  • /ˌdiːkəmˈpoʊz/
  • Specialized
translation icon : descomponer
  • An element is a substance that cannot be decomposed into a simpler substance by chemical means.
  • decompose organic matter
  • decompose organic matter

Examples

  • Composting of wastewater residual is a bio-thermal aerobic process that decomposes the organic portion of the residuals.

    Academic text (2002)
  • We call transformations like this chemical reactions, and we can use chemical reactions to decompose some pure substances.

  • When you bury this bowl with other garbage, it actually helps the other garbage decompose faster.

  • The manure, a nitrogen source, would help the paper waste decompose and turn into compost.

    Academic text (1996)
  • In the case of PLLA, the material decomposes and is reabsorbed by the body.

    Academic text (2002)
  • His gasifier (top) decomposes wood into a synthetic gas that is fed to a standard engine (above).

    Academic text (2012)
  • When organic waste decompose, it produces nutrient-rich compost for the garden.

  • The scientist explained how bacteria can decompose food waste into useful materials.

  • If left in a landfill, plastics can take hundreds of years to decompose completely.

Synonyms

to break up
vsto decompose
66 2.7

Separate something into smaller pieces

is general physical breaking, lacking chemical transformation focus
to digest
vsto decompose
52 2.8

To break down food in the body so the body can use it

focuses on bodily processing rather than general lab chemical separation
to split up
vsto decompose
47 2.6

To divide something into smaller parts

is neutral division without specifying chemical or physical process
to break down
vsto decompose
  • Specialized
36 3.7

To make something separate into smaller parts by a chemical process

is specifically about separating into constituent elements chemically
to disintegrate
vsto decompose
  • Specialized
29 6.0

Break into smaller parts by losing energy in a physical process, for example in an atom

is physical fragmentation or energy loss, not specifically chemical change
to dissociate
vsto decompose
  • Specialized
1 7.4

To split a molecule into atoms or ions

is usually temporary and reversible rather than permanent chemical breakdown

How Decomposed

to dissolve
64 2.4
to decompose
  • Specialized
9 5.5
to break down
  • Specialized
36 3.7
to fragment
39 3.7

Surface Forms

decompose infinitive
decomposed past
decomposed past participle
decomposing present participle
decomposes third person singular

Morphology

decompose = compose (semi-transparent) = de + compose

The sense 'break into constituent parts' is related to reversing 'compose', but it depends on the less salient meaning of 'compose' as 'form from parts'.

Etymology

The word decompose comes from the parts de- meaning 'away' and compose meaning 'to put together'. So to decompose something is to 'take apart' its parts, which fits when scientists break a compound into simpler pieces.