a cylindrical device on which film, magnetic tape, thread, or other flexible materials can be wound; a reel
spools of electrical cable
wind (magnetic tape, thread, etc.) on to a spool
he was trying to spool his tapes back into the cassettes with a pencil eraser
send (data that is intended for printing or processing on a peripheral device) to an intermediate store
users can set which folder they wish to spool files to
(of an engine) increase its speed of rotation, typically to that required for operation
a jet engine can take up to six seconds to spool up