plural rhubarbs
1
: a plant with large green leaves and with thick pink or red stems that are cooked and used in pies, jams, etc.
rhubarb pie
2
US, informal + old-fashioned
: an angry argument
The coach got into a rhubarb with the umpire.
Cite this Entry
“Rhubarb.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/rhubarb. Accessed 24 Jun. 2026.
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