U+338D "㎍" Square Mu G Unicode Character

U+338D "㎍" Square Mu G is a compatibility CJK (Chinese, Japanese, and Korean) ideograph that represents a square symbol combining the Greek letter mu and the Latin capital G, functioning as a typographic representation of the unit "microgram" in scientific and medical contexts. It is part of the CJK Compatibility block in Unicode, specifically designed for East Asian text processing where such precomposed square forms are commonly used to denote metric units. This character allows for compact and consistent display of the microgram unit, which is equal to one millionth of a gram, without requiring separate superscript or subscript formatting.