椎实螺属：其中阿陆椎实螺(L. ollula)与类卜椎实螺(L. bulimoides)是肝片形吸虫的第一中间宿主；其他是引起血吸虫皮炎的血吸虫的宿主- radiogenesis
- radiogenic
- radiogold
- radiogram
- radiograph
- radiographic
- radiography
- radiohumeral
- radioimmunity
- radioimmunoassay
- radioimmunodiffusion
- radioimmunoelectrophoresis
- radioimmunoprecipitation
- radioimmunosorbent
- radioiodine
- radioiron
- radioisotope
- radiokymography
- radiolead
- radiolesion
- radioligand
- radiologic,radiological
- radiologist
- radiology
- radiolucency