Enter a clue or pattern or both:

The Clue

Antiknock fluids (6 letter answer)

The Answer

ETHYLS

Tags


Notes

The answer ETHYLS is so rare that it appears less than once every 2500 puzzles.

Definition

ETHYL as a noun:

1. (ethyl, ethyl group, ethyl radical) = the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom