Microgram per Day

**Semantic type:** Quantitative Concept

**Definition:** A unit of mass flow rate equivalent to the rate at which one millionth of a gram of matter crosses a given surface or is delivered to a given object or space over a period of time equal to twenty four hours. Microgram per 24 hours is also a dose administration rate unit equal to the rate at which one millionth of a gram of a product is administered per unit of time equal to twenty four hours.

**Synonyms:** - Microgram per 24 Hours - mcg/24h - mcg/d - mcg/day - mcg/day - microgram per day - ug/24.h - ug/24.h - ug/24h - ug/d - ug/d - ug/d - ug/d - ug/day - ug/day