What 腙 means
It names hydrazones, a chemical compound class.
Hydrazones form when hydrazine, a nitrogen-containing chemical, reacts with aldehydes or ketones, two kinds of organic molecule.
Chinese chemical-naming rules used 腙 by 1932; that dates the term, not the character’s coinage.
Does 腙 have another meaning?
Yes: a dictionary entry records a Southwest Mandarin sense.
It means “raise the buttocks” or “bump,” separate from chemistry.
Technical chemistry term; PC, phone, and browser fonts may draw it differently as of 2026.
What it means when someone sends it to you
2 readingsChemistry note
Hydrazone name.
Southwest Mandarin conversation
Dictionary entry: “raise the buttocks” or “bump.”
Questions people ask
1Why does 腙 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 腙
Windows (Word)
Alt+XType 8159, then Alt+X to get 腙.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “cjk unified ideograph-8159”.
Linux
Ctrl+Shift+UType 8159, then Enter or Space.
HTML
腙CSS
\8159Mandarin Pinyin
Type 腙 with Pinyin (Mandarin written with Latin letters): enter zong, then select 腙.
Codes and encoding1 code points
HTML decimal
腙
HTML hex
腙
CSS content
content: "\8159";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E8%85%99
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.