Decaffeinated coffee comes from a chemical process that takes out caffeine from the beans. Pharmaceutical and soda companies buy the extracted caffeine.
ANTIKNOCK
antiknock, antiknocking
(adjective) suppressing or eliminating engine knock in combustion engines; āantiknock propertiesā; āantiknock 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
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FUTON
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