plural spleens
1
: an organ located near your stomach that destroys worn-out red blood cells and produces white blood cells
a ruptured spleen
2
literary
: feelings of anger
I listened patiently while she vented her spleen. [=while she expressed her angry feelings]
Cite this Entry
“Spleen.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/spleen. Accessed 21 Jun. 2026.
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