From China Digital Space
菊花文 (júhuā wén): chrysanthemum script
Coded writing using the Combining Cyrillic Millions character ( ҉ ; Unicode: U+0489). Typically used in bi-directional text, where both left-to-right and right-to-left scripts are used simultaneously, Chinese netizens have employed ҉ to obscure sensitive online discussion.
When Combining Cyrillic Millions ( ҉ ) is inserted between each character in a word or phrase, the ҉ overlays each character, making it difficult to automate censorship. Online converters allow Internet users to create chrysanthemum script automatically.
See also Martian script.