iteration mark; repetition symbol
A symbol used in Japanese writing to indicate that the preceding character is repeated, such as 々, ゝ, or ヽ.
See also: 繰り返し符号
繰り返し記号は、同じ文字を繰り返すときに使われます。
An iteration mark is used when repeating the same character.
縦書きでは、繰り返し
In vertical writing, iteration marks are sometimes used.
Compound of 繰り返し (repetition) + 記号 (symbol). The term is descriptive and transparent.