[ klahyn-fel-ter sin-drohm, ‐druhm ]
/ ˈklaɪn fɛl tər ˈsɪn droʊm, ‐drəm /
an abnormal condition in which at least one extra X chromosome is present in a male: characterized by reduced or absent sperm production, small testicles, and in some cases enlarged breasts. Abbreviation: KS
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Origin of Klinefelter syndrome
First recorded in 1945–50; named after Harry Fitch Klinefelter (1912–90), U.S. physician, coauthor of a description of the syndrome
Words nearby Klinefelter syndrome
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020