Definition of diquat in English:

diquat

noun

  • [mass noun] A synthetic compound used in controlling plant growth, often as a non-persistent contact herbicide.

    • ‘Cost of treating hydrilla with diquat or Sonar is about $1, 000 an acre.’
    • ‘EPA has found diquat to potentially cause the following health effects.’
    • ‘Victor Oreffo (AstraZeneca, Loughborough, UK) presented results on gene expression analysis following in vivo or in vitro exposure to the oxidative stress agents menadione and diquat.’

Origin

1960s: from di- ‘two’+ quaternary.

Pronunciation:

diquat

/ˈdʌɪkwɒt/