| Abbreviation | Definition |
|---|---|
| CGG | catecholamine |
| CGG | cathode |
| CGG | celiac axis |
| CGG | cephalic artery |
| CGG | cerebral aqueduct |
| CGG | cerebrovascular amyloid |
| CGG | Certificate Authority |
| CGG | Certified Acupuncturist |
| CGG | challenging arthritis |
| CGG | Chemical Abstracts |
| CGG | chloramphetamine |
| CGG | cholic acid |
| CGG | choline-adrenalin |
| CGG | chromic acid |
| CGG | chronologic age |
| CGG | Citizen Act |
| CGG | coagulation |
| CGG | coarctation of the aorta |
| CGG | Cocaine Anonymous |
| CGG | coeliac axis |