ANTIKNOCK

antiknock, antiknocking

(adjective) suppressing or eliminating engine knock in combustion engines; ā€œantiknock propertiesā€; ā€œantiknock ratingā€

antiknock

(noun) any of various compounds that are added to gasoline to reduce engine knocking

Source: WordNet® 3.1


Etymology

Adjective

antiknock (not comparable)

Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.

Noun

antiknock (plural antiknocks)

Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol)

Source: Wiktionary



RESET




Word of the Day

11 January 2025

COWBERRY

(noun) low evergreen shrub of high north temperate regions of Europe and Asia and America bearing red edible berries


coffee icon

Coffee Trivia

Coffee has initially been a food ā€“ chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

coffee icon