| URALITISATION | • uralitisation n. Alternative form of uralitization. • URALITISATION n. the process of uralitising, also URALITIZATION. |
| URALITIZATION | • uralitization n. (Geology) The change of pyroxene to amphibole by paramorphism. • URALITIZATION n. the process of uralitizing, also URALITISATION. |
| URANOGRAPHERS | • uranographers n. Plural of uranographer. • URANOGRAPHER n. one who maps the constellations. |
| URANOGRAPHIES | • uranographies n. Plural of uranography. • URANOGRAPHY n. descriptive astronomy and mapping. |
| URANOGRAPHIST | • URANOGRAPHIST n. one who practises uranography, descriptive astronomy and mapping. |
| URANOPLASTIES | • uranoplasties n. Plural of uranoplasty. • URANOPLASTY n. plastic surgery of the palate. |
| URBANISATIONS | • urbanisations n. Plural of urbanisation. • URBANISATION n. an increase of people moving to urban areas, also URBANIZATION. |
| URBANIZATIONS | • urbanizations n. Plural of urbanization. • URBANIZATION n. an increase of people moving to urban areas, also URBANISATION. |
| URBANOLOGISTS | • urbanologists n. Plural of urbanologist. • URBANOLOGIST n. one who studies towns. |
| UREDINIOSPORE | • urediniospore n. (Botany) A spore produced by a uredinium. • UREDINIOSPORE n. the thin-walled summer spore which is produced during the so-called Uredo stage of certain rusts, also UREDIOSPORE, UREDOSPORE. |
| URETHROSCOPES | • urethroscopes n. Plural of urethroscope. • URETHROSCOPE n. an instrument for viewing the interior of the urethra. |
| URETHROSCOPIC | • urethroscopic adj. Relating to urethroscopy. • URETHROSCOPIC adj. relating to urethroscopy. |
| UROBILINOGENS | • UROBILINOGEN n. any of a group of colourless tetrapyrrole compounds produced by the reduction of bilirubin. |
| UROGYNECOLOGY | • urogynecology n. A surgical subspecialty of urology and gynecology. |