acetone

noun

Etymology: From acet- from acētum (“vinegar”). The -one was taken from margarone but further etymology is unclear. Doublet of ketone.

1. A colourless, volatile, flammable liquid ketone, (CH₃)₂CO, used as a solvent.

   “You open the salon door and the acetone from yesterday’s manicures immediately stings my nostrils.”