What 蟡 means
It is a Chinese character for a water creature.
Two Chinese character dictionaries, Yupian and Jiyun, give different glosses for 蟡: one describes a snake-shaped water creature; the other calls it a spirit of dried-up water.
Why was 蟡 encoded separately?
It preserves an older character-set distinction.
Taiwan’s CNS 11643 Chinese Standard Interchange Code expanded from two to seven character planes in 1992; this form is listed as T7-425F. Unicode kept it so text could move between the standards without losing its source glyph.
Text normalization (standardizing equivalent strings) can turn 蟡 into 蟡. Unicode’s variant sequence 蟡︀ uses an invisible character that requests the variant glyph, preserving that distinction.
Who writes 蟡
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Questions people ask
1Why does 蟡 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type or find 蟡
- Search it as
- 蟡 · guǐ · cns11643 · t7-425f
- Shows up in
- Anything that takes text · its shape is whatever your font draws
蟡\2F9C0Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

