Mantoux test

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A tuberculin test in which a small amount of tuberculin is injected under the skin.

Wiktionary

1. n. immunology A skin test for tuberculosis, involving an injection of PPD (purified protein derivative).

GNU Webster's 1913

1. n. (Med.) A skin test for hypersensitivity to tuberculin. It determines whether there is or has been any infection with tubercle bacilli.

WordNet 3.0

1. n. tuberculin (a derivative of tubercle bacillus) is injected intradermally; a red area appearing 1-3 days later signifies an exposure (past or present) to tubercle bacilli and the need for further testing