- an organ that surrounds the urethra of males at the base of the bladder, comprising a muscular portion, which controls the release of urine, and a glandular portion, which secretes an alkaline fluid that makes up part of the semen and enhances the motility and fertility of sperm.
Origin of prostate gland
First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A chestnut-shaped body that surrounds the beginning of the male urethra at the base of the bladder, consists of two lobes connected anteriorly by an isthmus and posteriorly by a middle lobe lying above and between the ejaculatory ducts, controls the release of urine from the bladder, and whose milky fluid secretion is discharged into the urethra during semen emission.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A gland in male mammals located at the base of the bladder. The prostate gland opens into the urethra and secretes a milky fluid that is a major component of semen.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Prostate cancer is a leading cause of death among American men.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.