1
: a cylindrical device which has a rim or ridge at each end and an axial hole for a pin or spindle and on which material (such as thread, wire, or tape) is wound
2
: material or the amount of material wound on a spool
spooled; spooling; spools
1
: to wind on a spool
2
: wind entry 3
spool the thread off the bobbin
3
: to regulate the transmission of by means of a spooler
spool data
1
: to wind itself on a spool
2
: to be wound or unwound
3
: to regulate data flow by means of a spooler
Cite this Entry
“Spool.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spool. Accessed 7 Jul. 2026.
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