prostate (n.)

"the prostate gland," 1640s, from French prostate, from Medieval Latin prostata "the prostate," from Greek prostatēs (adēn) "prostate (gland)," from prostatēs "leader, ruler, guardian; one standing in front," from proistanai "set before," from pro "before" (from PIE root *per- (1) "forward," hence "in front of, before") + histanai "cause to stand," from PIE root *sta- "to stand, make or be firm." So called from its position at the base of the bladder and immediately in front of its mouth. Related: Prostatic.

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Definitions of prostate from WordNet
prostate (n.)
a firm partly muscular chestnut sized gland in males at the neck of the urethra; produces a viscid secretion that is the fluid part of semen;
Synonyms: prostate gland
prostate (adj.)
relating to the prostate gland;
Synonyms: prostatic