present participle of spool down

simple past tense and past participle of spool up

(aviation, of a turbine engine) To decrease in rotational speed, producing a decrease in thrust.

(aviation, of a turbine engine) To increase in rotational speed, producing an increase in thrust. / (figuratively) To be brought into full operation; to reach full potential or capacity.

plural of pipe spool

A prefabricated portion of pipework and fittings, for ease of installation.

plural of spooler

(textiles) A device for winding thread onto a spool. / (computing) A program or process that spools (places data in a queue to be accessed later)

Capable of being spooled, or wound onto a reel.

(cosmetics, informal) A spool brush.