Ẑ

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Z with circumflex
Ẑ ẑ
Usage
Writing systemLatin script
Typealphabetic
Language of originISO 9 Cyrillic transliteration, Poliespo, Tsilhqot'in
Sound values/ẕˤ/
In UnicodeU+1E90, U+1E91

Ẑ is a Latin script letter, the letter Z with a circumflex, used for transliteration of the Cyrillic letter Ѕ in ISO 9 family of transliteration standards, and rarely used in Pinyin as a shorthand of zh.[1] It is also used in Poliespo for the sound /kts/, and in the Tsilhqotʼin language to represent /zˤ/.

In mathematics, ẑ often refers to the unit vector in the +Z direction. In advanced mathematics, Z ^ {\displaystyle {\widehat {\mathbb {Z} }}} {\displaystyle {\widehat {\mathbb {Z} }}} refers to the ring of profinite integers.

References