Raciology | study of racial differences (see list of branches of science) |
Radiobiology | study of the scientific principles, mechanisms, and effects of the interaction of ionizing radiation with living matter (see list of branches of science) |
Radiochemistry | study of ordinary chemical reactions under radioactive circumstances (see list of branches of science) |
Radiology | study of X-rays and their medical applications (see list of branches of science) |
Radiophobia | fear of radiation, x-rays (see list of phobias) |
Ranidaphobia | fear of frogs (see list of phobias) |
Rectophobia | fear of rectum or rectal diseases (see list of phobias) |
Reflexology | study of reflexes (see list of branches of science) |
Rhabdophobia | fear of being severely punished or of being severely criticized (see list of phobias) |
Rheology | study of the deformation or flow of matter (see list of branches of science) |
Rheumatology | study of rheumatism (see list of branches of science) |
Rhinology | study of the nose (see list of branches of science) |
Rhochrematics | study of inventory management and the movement of products (see list of branches of science) |
Rhypophobia | fear of defecation (see list of phobias) |
Rhytiphobia | fear of getting wrinkles (see list of phobias) |
Robotics | study of robots (see list of branches of science) |
Runology | study of runes (see list of branches of science) |
Rupophobia | fear of dirt (see list of phobias) |
Russophobia | fear of Russia or Russians (see list of phobias) |
Rypophobia | fear of filth, defecation, or of being soiled (see list of phobias) |
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