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blue mass

noun, Pharmacology
1.
Also called mercury mass. a preparation of metallic mercury and other ingredients, used for making blue pills.
2.
blue pill (def 1).
Origin of blue mass
1850-1855
1850-55, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Value for blue

6
9
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