A synthetic compound used as a solvent for resins and dyes and (in the form of salts) as an ingredient of emulsifying soaps used in floor polishes.
- ‘Morpholine is used in some countries in cosmetic preparations, particularly mascara eye makeup.’
- ‘Morpholine is a colorless oily liquid with strong moisture absorption and strong basicity.’
Late 19th century: from morphine, with the insertion of the syllable -ol- (see -ol).
We take a look at several popular, though confusing, punctuation marks.