antiknocks
noun
A substance (such as tetraethyl lead) added to petrol to inhibit pre-ignition.
anti-knock additives
noun
A substance (such as tetraethyl lead) added to petrol to inhibit pre-ignition.
anti-knock additives
December 18th, 2025
15 English Words That Contradict Themselves
December 15th, 2025
Fun Facts About the Dictionary You Probably Didn’t Know
December 11th, 2025
Clever Riddles With Answers Hiding in Plain Sight
September 22nd, 2025
10 of the Longest Words in the English Language (and How to Use Them)