| urethra | | |
| n. (body) | 1. urethra | duct through which urine is discharged in most mammals and which serves as the male genital duct. |
| ~ duct, epithelial duct, canal, channel | a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance.; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs" |
| ~ apparatus urogenitalis, genitourinary apparatus, genitourinary system, systema urogenitale, urinary apparatus, urinary system, urogenital apparatus, urogenital system | the system that includes all organs involved in reproduction and in the formation and voidance of urine. |
| ~ urinary tract | the organs and tubes involved in the production and excretion of urine. |
| ~ external orifice, urethral orifice | the orifice through which urine is discharged. |
| ~ vulva | external parts of the female genitalia. |
| ~ penis, phallus, member | the male organ of copulation (`member' is a euphemism). |
| ~ musculus sphincter urethrae, urethral sphincter | a striated sphincter muscle that constricts the urethra. |
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