Longman Dictionary of Contemporary English homepage

Date: 1200-1300
Language: Old French
Origin: esplen, from Latin splen, from Greek

spleen

noun
     
Related topics: Human
spleen
1 [countable]HBH an organ near your stomach that controls the quality of your blood
2 [uncountable] formal anger, especially unreasonable or unfair anger:
Obviously you're annoyed, but that doesn't give you the right to vent your spleen on me (=get angry with me).

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