variants
or British castor
ˈkæstɚ 
British ˈkɑːstə
plural casters
: a small wheel attached to the bottom of something (such as a piece of furniture) to make it easier to move
Cite this Entry
“Caster.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/caster. Accessed 22 Jun. 2026.
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