noun
write once
Computing term for storage media or memory that can be written to only once, such as WORM (Write Once Read Many) devices.
このディスクはライトワンスなので、一度書き込むと消せません。
This disc is write-once, so once you write to it, you cannot erase it.
Variant with interpunct, sometimes used for clarity.
Borrowed from English 'write once'.