oxocine
(organic chemistry) A colourless, volatile, flammable liquid ketone, (CH₃)₂CO, used as a solvent.
(transitive) To make complex; to modify so as to make something intricate or difficult. / (transitive) To involve in a convoluted matter.
(organic chemistry) An unsaturated eight-membered heterocycle having seven carbon atoms, one oxygen atom and three double bonds
simple past tense and past participle of book up
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