| UG | geometric unsharpness; urogastrone; urogenital |
|---|---|
| UGD | urogenital diaphragm |
| UGDP | University Group Diabetes Project |
| UGF | Urinary Gonadotropin Fragment |
| UGF | unidentified growth factor |
| UGH | uveitis-glaucoma-hyphema [syndrome] |
| UGH+ | uveitis-glaucoma-hyphema plus vitreous hemorrhage [syndrome] |
| UGI | Upper Gastro-Intestinal |
| UGI | upper gastrointestinal [tract] |
| UGIH | upper gastrointestinal hemorrhage |