noun, noun or participle which takes 'suru'
Refers to a cylindrical object around which thread, film, tape, or wire is wound. Can also be used as a suru-verb meaning to wind onto a spool.
釣り糸をスプールに巻く。
Wind the fishing line onto the spool.
データをテープにスプールする。
Spool the data onto tape.
Borrowed from English 'spool'.