Treatment of Cross-eyed: For more treatment information about Cross-eyed, see treatment of Squint (Cross-eyed).
It can be used to indicate a smaller than average scale (microscopic scale), as opposed to prefixes mega and macro, which can be used to indicate a larger than average scale. Micro may refer to: 1  micro- (Âµ) a prefix in the SI and other systems of units denoting a factor of 10 â6 (one millionth). 2  MICRO Information Management System, an early set-theoretic database management system. 3  Micro programming language, a simple programming language used in teaching compiler construction techniques.
One microgram is one millionth of a gram and one thousandth of a milligram. It is usually abbreviated as mcg or ug. Mcg and ug are the same. The IU is an International Unit, usually used to measure fat soluble vitamins including Vitamin A, D and E. The conversion of IU to mg varies depending on the nutrient.