Definition of Viagra in English:

Viagra

noun

trademark
  • [mass noun] The drug sildenafil, used to enhance male potency.

    • ‘Note that you should not take Viagra if you take glyceryl trinitrate.’
    • ‘What about a man who has a prescription for Viagra or some other erectile dysfunction drug?’
    • ‘It is the active ingredient in the anti-impotence drug known as Viagra.’
    • ‘Drugs like Viagra, Cialis and Levitra are now the mass panacea for a flagging sex drive.’
    • ‘Valium and Viagra are trade names, while diazepam and sildenafil are generics.’

Origin

1990s: probably suggested by words such as virile and virility.

Pronunciation:

Viagra

/vʌɪˈaɡrə/