| A | B |
| -ectomy | combining form meaning excision of any anatomical sructure |
| -ectasis | dialation of any tubular vessel |
| -emesis | vomiting. It may be gastric, systemic, or neurological origin |
| -emia | suffix meaning blood disease |
| Encephalo | brain |
| Entero | combining forms meaning intestines |
| Ecto | combining form meaning outside |
| Exo | combining form meaning without; outside of |
| Endo | meaning within |
| Epi | meaning upon, over, at and addition to |
| Erythro | combining form meaning red |
| Extra | outside of, in addition to, beyond |
| Fore | in, toward, near the front |