Tuberculin Unit per Milliliter

**Semantic type:** Quantitative Concept

**Definition:** A unit of biologic activity of tuberculin expressed as a number of arbitrary units of tuberculin in one milliliter of preparation.

**Synonyms:** - Tuberculin Unit/Milliliter - Tuberculin Unit/mL - [tb'U]/mL - [tb'U]/mL - [tb'U]/ml - [tb'U]/ml - tuberculin unit(s)/millilitre - tuberculin unit/mL - tuberculin unit/ml