What 鱀 means
No. It is a compatibility form of 鱀.
In Mandarin, 鱀 is read jì and names a finless porpoise. The early Chinese dictionary Erya lists it among aquatic animals and links it to 鱁.
It belongs to plane 7, the standard's seventh numbered table. Converting data to and from Taiwan's CNS 11643-1992 encoding preserves its legacy code; ordinary text uses 鱀.
Will normalization keep 鱀 separate?
No. The distinct code point is not preserved.
Unicode normalization cleans up equivalent text; all four standard forms change 鱀 to 鱀. Save the original code point before normalizing legacy data. The standardized sequence 鱀︀ (U+9C40 U+FE00) requests its glyph variant in a supporting font.
Questions people ask
1Why does 鱀 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 鱀
鱀\2FA0BCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.