<p><strong>Noun</strong></p><ul><li>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</li><li>Obsolete: this organ conceived of as the seat of spirit and courage or of such emotions as mirth, ill humor, melancholy, etc.</li><li>ill humor, peevish temper, or spite</li><li>Synonyms: acrimoniousness, anger, ire, wrath, rancor, petulance</li><li>Archaic: melancholy</li><li>Obsolete: caprice</li></ul>