gum ammoniac

American  

noun

1. a brownish-yellow gum resin, having an acrid taste, occurring in tearlike fragments from a plant, Dorema ammoniacum, of western Asia: used in porcelain ceramics and in medicine as an expectorant and counterirritant.

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gum ammoniac British  

noun

1. another name for ammoniac 2

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Etymology

Origin of gum ammoniac

Middle English word dating back to 1350–1400

Example Sentences

This gum is used for similar purposes as gum ammoniac and assafœtida.

From Project Gutenberg

Jewellers’ or Armenian cement consists of isinglass with mastic and gum ammoniac dissolved in spirit.

From Project Gutenberg

This powder must be preserved in a bottle; when you want to use it, put a small quantity of gum ammoniac into distilled vinegar, and leave it to dissolve during the night.

From Project Gutenberg

Expectorants, as squill, onions, gum ammoniac, seneka root, mucilage: some of these increase the pulmonary perspiration, and perhaps the pulmonary mucus.

From Project Gutenberg

The 44 pounds of gum ammoniac was reported "damaged," and the 86 pounds of rhubarb was described as "bad."

From Project Gutenberg