| GBD | gallbladder disease; gender behavior disorder; glass blower's disease; granulomatous bowel disease |
|---|---|
| IBS | imidazole buffered saline; immunoblastic sarcoma; irritable bowel syndrome; isobaric solution |
| LB | lamellar body; large bowel; left breast; left bronchus; left bundle; left buttock; leiomyoblastoma; ... |
| LBM | lean body mass; loose bowel movement; lung basement membrane |
| MSB | Master of Science in Bacteriology; mid-small bowel; most significant bit |