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late 14c., from Latin semen "seed of plants, animals, or men; race, inborn characteristic; posterity, progeny, offspring," figuratively "origin, essence, principle, cause," from PIE *si-so-, reduplication of root *se- (1) "to sow" (cf. Latin serere "to sow," Old Prussian semen "seed," Lithuanian semens "seed of flax," Old Church Slavonic seme, Old High German samo "seed," German Same; see sow (v.)).
semen se·men (sē'mən)
A viscous whitish secretion of the male reproductive organs, containing spermatozoa and consisting of secretions of the testes, seminal vesicles, prostate, and bulbourethral glands.