seminal vesicle

noun Anatomy.
either of two small saclike glands, located on each side of the bladder in males, that add nutrient fluid to semen during ejaculation.

Origin:
1885–90

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

seminal vesicle n.
Either of a pair of pouchlike glands situated on each side of the male urinary bladder that secrete seminal fluid and nourish and promote the movement of spermatozoa through the urethra. Also called gonecyst, seminal gland.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

seminal vesicle

either of two elongated saclike glands that secrete their fluid contents into the ejaculatory ducts of some male mammals.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The testes, prostate gland and seminal vesicle are unremarkable.
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