- ga
- Gaboon ulcer
- gadinine
- gadolinite
- Gaertner's tonometer
- Gaertner's tonometer's vein phenomenon
- Gaertner’s canal or duct
- Gaffky scale or table
- gag
- galactidrosis
- galactoblast
- galactococcus
- Galactometer
- Galactophagous
- galactophlysis
- galactophore
- Galactophorous
- galactophorous canal
- galactophthisis
- galactophygous