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morpholine

[mawr-fuh-leen, -lin]
noun Chemistry.
  1. a colorless, hygroscopic liquid, C4H9NO, used chiefly as a solvent for dyes, resins, and waxes.
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Origin of morpholine

First recorded in 1885–90; morph- + -ol2 + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018