Dictionary.com
definitions
  • synonyms

blue pill

See more synonyms on Thesaurus.com
noun Pharmacology.
  1. a pill of blue mass, used in medicine chiefly as a cathartic.

Origin of blue pill

First recorded in 1785–95
Also called mercury mass.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for blue pill

Historical Examples

  • The time will come, we may hope, when doctors will prescribe bird-gazing instead of blue-pill.

    Birds in the Bush

    Bradford Torrey