NCIt definition : The thick, whitish secretion of the male reproductive organs. It is composed of spermatozoa
in their nutrient plasma, secretions from the prostate, seminal vesicles, and various
other glands, epithelial cells, and minor constituents.;
Alternative definition : CDISC: The fluid containing the spermatozoa, secreted by the testes and accessory
reproductive glands of the male.; NCI-GLOSS: The fluid that is released through the penis during orgasm. Semen is made
up of sperm from the testicles and fluid from the prostate and other sex glands.;