purified protein derivative
noun
pu·ri·fied protein derivative
ˈpyu̇r-ə-ˌfīd- 
: a highly purified preparation of tuberculin used in skin tests (as the Mantoux test) to detect tubercle bacillus infection
—abbreviation PPD
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“Purified protein derivative.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/purified%20protein%20derivative. Accessed 26 Nov. 2024.
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