| urethane |
any of several compounds derived from carbamic acid; ethyl carbamate. [2 definitions] |
| urethra |
a duct that carries urine outside the body from the bladder and that, in a male mammal, conducts the semen. |
| urethroscope |
a medical instrument for observing the interior of the urethra. |
| urge |
to push or drive forward or onward. [7 definitions] |
| urgency |
the state of being urgent; pressing necessity or importance. [2 definitions] |
| urgent |
requiring immediate action or attention; pressing. [3 definitions] |
| -urgy |
the science, technique, or process of working with (such) a material or tool. |
| -uria |
the presence of (such) a substance in the urine. |
| uric |
concerning, contained in, or derived from urine. |
| uric acid |
a white, odorless, crystalline substance, found in urine and the excreta of birds and reptiles. |
| urinal |
a wall plumbing fixture into which men may urinate, or a place containing such fixtures. [2 definitions] |
| urinalysis |
the chemical analysis of urine. |
| urinary |
of or relating to urine or the organs that produce and excrete it. |
| urinate |
to discharge urine. |
| urine |
a waste substance secreted by the kidneys and excreted as a yellowish fluid by mammals or as a semisolid by reptiles and birds. |
| urinogenital |
see "genitourinary." |
| URL |
abbreviation of "uniform resource locator," an address identifying the location of a file on the Internet, consisting of an identifier for the computer on which the file is located and the file's location on that computer. |
| urn |
a large vase, usu. with a pedestal or base. [3 definitions] |
| uro- |
urine. |
| urogenital |
of or concerning the urinary or genital organs; genitourinary. |
| urology |
the area of medicine that deals with the physiology and disorders of the urinary or genitourinary tracts. |