noun
full-width digit
Technical term in computing and typography for digits that occupy the same width as a CJK character, as opposed to half-width digits.
このフォームでは全角数字で入力してください。
Please enter using full-width digits in this form.
全角数字は半角数字よりも横幅が広い。
Full-width digits are wider than half-width digits.
Compound of 全角 (full-width) and 数字 (digit). A modern technical term from computing and typography.