spool

IPA: spˈuɫ

A reel; a device around which thread, wire or cable is wound, especially a cylinder or spindle.
(aviation) One of the rotating assemblies of a gas turbine engine, composed of one or more turbine stages, a shaft, and one or more compressor or fan stages.
(computing) A temporary storage area for electronic mail, etc.
A small swimming pool that can be used also as a spa.

To wind on a spool or spools.
(computing) To send files to a device or a program (a spooler or a daemon that puts them in a queue for processing at a later time).

Examples of "spool" in Sentences

A spool is fixed to the main rod.
Both the spool and the rim are stationary.
A spool is rotatably mounted on the framework.
A spool for the line is located in the housing.
Any one spool can be replaced without disturbing any other spool.
Each of the spool output gears are provided with unidirectional brakes.
A spool actuator member controls extension of the spool from the valve.
Also provided is a rotatable spool having a line wound around the spool.
A spring acting on the spool rotates the spool to wind the cable on the spool.
The ends of the spool are preferably eccentric so as to cause the toy to wobble.
If you want to add extra distance make sure the spool is completely full of line.
The spool is oversized and allows for a lot of line but it feels bulky and over sized.
The rotating bail cup a short unskirted spool is in, prevents the line from doing this.
I replace light casting lines as soon as I notice any loss of line flexibility (the line starts to retain spool loops rather than straightening out nice and smooth).