One of the mysteries of the English language finally explained.
Attributive and in the genitive. Designating or relating to a cutaneous test for tuberculosis in which the skin of the forearm is scarified through a drop of tuberculin; especially in "Pirquet test".
Early 20th century; earliest use found in The Lancet. From the name of Clemens von Pirquet, Viennese paediatrician, who introduced the test in 1907.
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