pinacol
/ˈpɪnəkɒl/Chemistry
noun
An alcohol having two hydroxyl groups bonded to adjacent tertiary carbon atoms; specifically the simplest alcohol of this kind, 1,4-dimethylpropan-2,3-diol (also called tetramethyl ethylene glycol), (CH3)2(OH)CC(OH)(CH3)2, a crystalline solid made by reducing acetone with magnesium amalgam.
Origin
Early 20th century; earliest use found in Chemical Abstracts. From pinac- + -ol.