spleen

American  

[spleen] / splin /

noun

1. a highly vascular, glandular, ductless organ, situated in humans at the cardiac end of the stomach, serving chiefly in the formation of mature lymphocytes, in the destruction of worn-out red blood cells, and as a reservoir for blood.

2. Obsolete. this organ conceived of as the seat of spirit and courage or of such emotions as mirth, ill humor, melancholy, etc.

3. ill humor, peevish temper, or spite.

   Synonyms:

   anger, ire, wrath, acrimoniousness, rancor, petulance

4. Archaic. melancholy.

5. Obsolete. caprice.

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spleen British  

/ spliːn /

noun

1. a spongy highly vascular organ situated near the stomach in man. It forms lymphocytes, produces antibodies, aids in destroying worn-out red blood cells, and filters bacteria and foreign particles from the blood

2. the corresponding organ in other animals

3. spitefulness or ill humour; peevishness

   to vent one's spleen

4. archaic the organ in the human body considered to be the seat of the emotions

5. archaic another word for melancholy

6. obsolete whim; mood

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spleen Scientific  

/ splēn /

1. An organ in vertebrate animals that in humans is located on the left side of the abdomen near the stomach. The spleen is mainly composed of lymph nodes and blood vessels. It filters the blood, stores red blood cells (erythrocytes) and destroys old ones, and produces white blood cells (lymphocytes).

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spleen Cultural  

1. An organ in the lymphatic system, in the upper left part of the abdomen, that filters out harmful substances from the blood. The spleen also produces white blood cells, removes worn-out red blood cells from circulation, and maintains a reserve blood supply for the body.

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spleen Idioms  

1. see vent one's spleen.

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Other Word Forms

• spleenish
  adjective
• unspleenish
  adjective
• unspleenishly
  adverb

Etymology

Origin of spleen

1250–1300; Middle English < Latin splēn < Greek splḗn; akin to Sanskrit plīhan, Latin liēn spleen

Explanation

The spleen is an organ that's about the size of a fist, located on the left side, just below the ribcage. Don't let its small size fool you. This little organ is very important in helping the body fight infection. The spleen is responsible for removing old red blood cells and producing and storing a reserve of blood in case the body needs it. It's a little organ, measuring little more than four inches in length. The term "vent your spleen" is one you might see used. It means to vent your anger, as spleen is another word for bad temper or spite.

Example Sentences

Spleen Actors Guild: Emoting our guts out since 1933.

From Washington Post • Nov. 25, 2020

In 2013, I read an investigative article in Mexico City’s Spleen!

From The New Yorker • Jan. 14, 2016

Spleen and scorn for les Americains, who had been fools enough to make M. Balieff rich, were explicitly on his lips in Paris.

From Time Magazine Archive

The 1982 Federal Express commercial featuring the fast-talking Mr. Spleen struck a chord in frantic managers everywhere.

From Time Magazine Archive

I saw a certain "Lord Spleen" mentioned in a playbill yesterday, and will look after that distinguished English nobleman to-night, if possible.

From The Letters of Charles Dickens Vol. 1, 1833-1856 by Hogarth, Georgina

Related Words

• ill humor
• ill temper
• peevishness