pearlash

English dictionary entry

Meanings

noun
  1. A white amorphous or granular substance which consists principally of potassium carbonate and has a strong alkaline reaction. It is obtained by lixiviating wood ashes and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc.

Word forms

pearlash pearlashes

Etymology

From pearl + ash. Compare potash.

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