U+3395 "㎕" Square Mu L Unicode Character

U+3395 "㎕" Square Mu L is a compatibility ideograph that represents the unit of volume known as the microliter, formed by combining the Greek letter mu (μ), which stands for the metric prefix micro (one millionth), with the letter L for liter into a single square glyph. It is part of the CJK Compatibility block in Unicode, originally included to preserve the precomposed form used in East Asian text and legacy encoding standards, such as those found in Japanese industrial and scientific contexts. This character allows for the compact representation of the unit microliter without relying on separate character spacing or superscripts, though modern usage often favors the sequence of individual characters like "μL" or "μl".