Etymology

tu

T1U1

Today it means: Tuberculin Units, the measure of an antigen used to aid in the diagnosis of tuberculosis infection. Full definition →

Mandarin 屠
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The story

  1. Mandarin · borrowed from屠
  2. English todayTu

Borrowed from Chinese. Most likely from the Hanyu Pinyin romanization of Mandarin 屠 (Tú) or 涂 (Tú).

Etymology from Wiktionary, CC BY-SA 4.0.