U+2997 LEFT BLACK TORTOISE SHELL BRACKET

The Unicode character U+2997, officially named LEFT BLACK TORTOISE SHELL BRACKET, was introduced in Unicode version 3.2. It is part of the Misc Math Symbols B block, which belongs to the Basic Multilingual plane.

Categorized technically as a Open Punctuation, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is not a composition and has no designated width in East Asian typography. When placed in bidirectional text, it behaves as an Other Neutral character. Its visual representation remains mirrored regardless of the reading direction.