Definition of weaken in English:

weaken

Line breaks: weak¦en
Pronunciation: /ˈwiːk(ə)n
 
/

verb

Derivatives

weakener

noun
More example sentences
  • These are notorious weakeners of the immune system.
  • Says Coleridge, one of the foremost of English thinkers: ‘I believe the habit of perusing periodical works may be properly added to the catalogue of anti-mnemonics, or weakeners of the memory.’
  • As you might expect, increasing the number of interior walls in the signal's line of sight, ie fixed signal weakeners, made interference more likely, though again, a decent picture was usually possible, sometimes by making minor adjustments to the precise location of the receiver.

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a slit made by cutting with a saw