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cachectin

[ kuh-kek-tin ]

noun

  1. Biochemistry, Immunology. a protein that is released by activated macrophages as an immune system defense and, when the defense is overwhelmed, is a cause of cachexia or toxic shock: in humans, identical with tumor necrosis factor.


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Word History and Origins

Origin of cachectin1

< Greek kachekt ( ikós ) unwell ( cachexia, -tic ) + -in 2

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