U+3394 "㎔" Square Thz Unicode Character
Unicode Version 17.0
㎔
U+3394 "㎔" Square Thz is a precomposed CJK compatibility ideograph representing the unit "THz" enclosed in a square, which stands for terahertz, a unit of frequency equal to one trillion hertz. This character is part of the CJK Compatibility block, designed to facilitate the representation of common unit symbols in legacy CJK character sets, particularly in East Asian typography where such squared forms were used for compact text layout. Its inclusion in Unicode allows for consistent encoding and display of this frequency unit across different platforms and applications, avoiding the need to construct it from individual characters.
General Properties
| Code Point | U+3394 |
| Version Added | 1.1 |
| Name | Square Thz |
| Unicode 1.0 Name | Squared Thz |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "T" U+0054 Latin Capital Letter T "H" U+0048 Latin Capital Letter H "z" U+007A Latin Small Letter Z |
Encodings
| HTML Decimal Encoding | ㎔ |
| HTML Hex Encoding | ㎔ |
| UTF-8 Encoding | 0xE3 0x8E 0x94 |
| UTF-16 Encoding | 0x3394 |
| UTF-32 Encoding | 0x00003394 |
| C/C++/Java Escape | \u3394 |