Entry from British & World English dictionary
noun[mass noun] trademark
A bitter-tasting synthetic organic compound added to cleaning fluids or other products to make them unpalatable.
- The lab experts finally identified the fluid through a taste test; one brave technician detected the presence of a bittering agent known as denatonium benzoate (trade name Bitrex).
- It tasted bitter, very bitter - bitterer than a beer brewed from the most horribly burnt hops, infused with that Bitrex stuff they put in bleach to discourage kids from swallowing, and topped off with essence of Greg Dyke.
- Snail bait pellets are still the choice of many gardeners, particularly since the child & animal paste deterrent ‘Bitrex’ has been added.
1960s: an invented name.
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