1
a
: a revolving cylinder over or on which something is moved or which is used to press, shape, spread, or smooth something
b
: a cylinder or rod on which something (such as a shade) is rolled up
2
a
: a long heavy ocean wave
b
4
: a slowly rolling ground ball
1
: any of various mostly brightly colored nonpasserine Old World birds (family Coraciidae) that perform rolling aerial dives during courtship displays
2
: a canary having a song in which the notes are soft and run together
Cite this Entry
“Roller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roller. Accessed 3 Aug. 2026.
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