spermine

noun
sperm·​ine | \ ˈspər-ˌmēn How to pronounce spermine (audio) , -mən How to pronounce spermine (audio) \

Medical Definition of spermine

: a deliquescent crystalline aliphatic tetramine C10H26N4 found in semen in combination with phosphoric acid, in blood serum and body tissues, and in yeast

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to reflect, repel, echo, or resound

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