Definition of caprolactam in English:

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Pronunciation: /ˌkaprə(ʊ)ˈlaktam/


[mass noun] Chemistry
A synthetic crystalline compound which is an intermediate in nylon manufacture.
  • A lactam; chemical formula: C6H11NO.
Example sentences
  • China on Friday imposed antidumping duties of up to 28% on caprolactam, a nylon fabric component, imported from Japan and four European countries.
  • Now this meant that in one go you could start from the reactants and end up with caprolactam, which is the stepping stone to nylon - and that's the revolutionary part of it.
  • If caprolactam is found on the backup section, it is added to the amount found on the front section.


1940s: from caproic acid + lactam.

For editors and proofreaders

Line breaks: capro|lac¦tam

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