from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The canal through which urine is discharged from the bladder in most mammals and through which semen is discharged in the male.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The tube through which urine exits the body and, in males, through which semen is ejaculated.
from the GNU version of the Collaborative International Dictionary of English
- n. The canal by which the urine is conducted from the bladder and discharged.
from The Century Dictionary and Cyclopedia
- n. A modification of a part of a urogenital sinus into a tube or a groove for the discharge of the secretion of the genital or urinary organs, or both; in most mammals, including man, a complete tube from the bladder to the exterior, conveying urine and semen in the male sex, urine only in the female; in some birds, a penial groove for the conveyance of semen only.
- n. the penis of any animal; in man, the spongy urethra.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. duct through which urine is discharged in most mammals and which serves as the male genital duct
Late Latin ūrēthra, from Greek ourēthra, from ourein, to urinate.(American Heritage® Dictionary of the English Language, Fourth Edition)
First coined 1634, from Ancient Greek οὐρήθρα (ourēthra, "the passage for urine"), from οὐρέω (oureō, "to make water"). (Wiktionary)