I. ˈkōk noun
( -s )
Etymology: Middle English coke, colke; akin to Swedish kälk pith, Greek gelgis bulb of garlic, Sanskrit gṛñjana garlic, Latin galla gall on a plant — more at gall
1. dialect England : the core especially of a fruit
2.
a. : the infusible cellular coherent residue from carbonized coal that consists mainly of carbon, is hard, porous, and gray with a submetallic luster, and is used as a fuel (as in blast furnaces and domestic furnaces)
b. : a similar residue from various other carbonized substances (as petroleum, shale oil, or copal)
c. : a piece of coke
put a coke on the fire
II. verb
( -ed/-ing/-s )
transitive verb
: to change into coke
a uniform controlled heat makes it impossible to coke or char the material
intransitive verb
: to become coky
the coking of petroleum oils on distillation — R.F.Goldstein
III. noun
( -s )
Etymology: by alteration and shortening
slang : cocaine