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Webster 1913 Edition

Potassa

Po-tas′sa

,

Noun.

[NL., fr. E.

potash

.]

(Chem.)

(a)

Potassium oxide.

[Obs.]

(b)

Potassium hydroxide, commonly called

caustic potash

.

Webster 1828 Edition

Potassa

POTAS'SA

,

Noun.

The scientific name of vegetable alkali or potash.