acetone

/ˈæ.sə.toʊn/

Æ · sə · toʊn (3 syllables)

English Noun Top 39,773

Definition

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

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

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