| 2DE | two-dimensional echocardiography |
|---|---|
| 2DFT | two-dimensional Fourier transform |
| DO | Doctor of Osteopathy (one of two fully recognized medical practioners in the US-the other being MD);... |
| grav | II pregnancy two, secundagravida |
| II | icterus index; image intensification or intensifier; Roman numeral two |