spermine

American  

[spur-meen, -min] / ˈspɜr min, -mɪn /

noun

Biochemistry.

1. a polyamine, H 2 N(CH2 ) 3 NH(CH2 ) 4 NH(CH2 ) 3 NH 2 , formed from spermidine and occurring in all cells, especially prevalent in semen, sputum, pancreatic tissue, and certain yeasts.

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spermine British  

/ ˈspɜːmiːn, -mɪn /

noun

1. a white or colourless basic water-soluble amine that is found in semen, sputum, and animal tissues; diaminopropyltetramethylenediamine. Formula: C 10 H 26 N 4

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Etymology

Origin of spermine

First recorded in 1890–95; sperm- + -ine ²

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Example Sentences

See Examples For:

spermine

In the context of neurodegenerative disorders such as Alzheimer's and Parkinson's, earlier work had already suggested that spermine can protect nerve cells and ease age-related memory problems.

From Science Daily ● Nov. 27, 2025

Specifically, the researchers observed how spermine helps the body's immune system eliminate nerve-damaging accumulations of amyloid proteins.

From Science Daily ● Nov. 27, 2025

In addition to spermine, there are many other polyamines that fulfil important functions in the organism and thus are medically interesting.

From Science Daily ● Nov. 27, 2025

Lacking until now, however, has been a more precise understanding of how spermine intervenes in nerve-damaging processes - understanding that might make it possible to derive medical benefits from it.

From Science Daily ● Nov. 27, 2025

I believe in Koch and in spermine and praise God for it.

From Letters of Anton Chekhov by Constance Garnett

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