noun
drive letter; drive letter designator
Technical computing term for the letter assigned to a disk drive (e.g., C:, D:).
Windowsでは、Cドライブのドライブ名は通常「C:」です。
In Windows, the drive letter for the C drive is usually 'C:'.
Compound of English loanword ドライブ (drive) and 名 (name).