U+33B7 "㎷" Square Mv Unicode Character

U+33B7 "㎷" Square Mv is a CJK compatibility ideograph representing the unit abbreviation for millivolt, where "Mv" is enclosed in a square form to indicate a measurement prefix common in East Asian typographic contexts. This character is part of the Unicode block dedicated to compatibility with legacy character sets used in Japanese, Chinese, and Korean text processing, where such squared units were standardized for concise display in documents and on electronic devices. Its inclusion ensures accurate digital representation and interchange of legacy data, though it is generally recommended to use standard unit symbols like "mV" for modern text.