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spermidine

[spur-mi-deen, -din]
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noun Biochemistry.
  1. a biogenic polyamine, H2N(CH2)4NH(CH2)3NH2, formed from putrescine, occurring widely in nature and first identified in semen.
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Origin of spermidine

First recorded in 1925–30; sperm- + -idine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
spermidine in Medicine

spermidine

(spûr′mĭ-dēn′)
n.
  1. A polyamine compound found in ribosomes and living tissues and having various metabolic functions. It was originally isolated from semen.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.