- agist7
- algologist16
- allergist13
- analogist13
- anesthesiologist22
- angelologist19
- anthologist17
- anthropologist23
- apologist15
- archaeologist21
- archeologist20
- assemblagist21
- astrobiologist20
- audiologist16
- bacteriologist23
- bibliopegist24
- biologist15
- biotechnologist27
- bryologist18
- campanologist26
- cardiologist19
- cetologist16
- chronobiologist27
- chronologist21
- climatologist23
- collagist16
- conchologist24
- cosmetologist22
- cosmologist20
- counterstrategist24
- criminologist23
- cryobiologist24
- cryptologist23
- cryptozoologist35
- cytologist18
- cytotechnologist30
- demonologist20
- dendrochronologist30
- dendrologist18
- deontologist17
- dermatologist20
- diabetologist20
- dialectologist22
- dialogist13
- druggist14
- ecclesiologist24
- ecologist15
- electrologist20
- electrophysiologist33
- elegist10
- embryologist23
- endocrinologist24
- enologist13
- entomologist19
- enzymologist30
- epidemiologist24
- epistemologist23
- escapologist21
- ethnologist17
- ethnomethodologist30
- ethnomusicologist30
- ethologist15
- etymologist19
- eulogist12
- exobiologist25
- fetologist16
- futurologist20
- gastroenterologist24
- gemmologist22
- gemologist18
- genealogist17
- geochronologist26
- geohydrologist24
- geologist14
- geomorphologist28
- geostrategist17
- gerontologist19
- gist6
- glaciologist21
- graphologist22
- gynecologist23
- hematologist20
- herpetologist21
- histologist16
- histopathologist26
- horologist15
- hydrobiologist25
- hydrologist19
- hydrometallurgist30
- hydrometeorologist29
- ichthyologist25
- ideologist14
- imagist12
- immunohematologist34
- immunologist23
- immunopathologist33
- iridologist15
- kremlinologist26
- legist9
- lepidopterologist28
- lexicologist26
- lichenologist23
- limnologist19
- liturgiologist21
- liturgist13
- malacologist22
- malariologist20
- mammalogist23
- martyrologist21
- metallurgist20
- meteorologist19
- methodologist22
- metrologist17
- microbiologist26
- micrometeorologist30
- micropaleontologist33
- mineralogist19
- mixologist23
- monologist17
- morphologist23
- museologist18
- musicologist22
- mycologist21
- mycophagist26
- myrmecologist27
- mythologist21
- narratologist17
- necrologist18
- nematologist19
- neonatologist18
- nephrologist21
- neurobiologist22
- neuroendocrinologist31
- neurologist16
- neuropathologist26
- neuropharmacologist35
- neurophysiologist29
- neuropsychologist32
- neuroradiologist22
- nonanthropologist28
- nonbiologist20
- nostalgist14
- numerologist20
- oceanologist19
- ologist10
- oncologist17
- onomatologist20
- ontologist14
- oologist11
- ophthalmologist29
- ornithologist19
- osteologist14
- otolaryngologist25
- otorhinolaryngologist33
- paleoanthropologist32
- paleobiologist24
- paleoclimatologist32
- paleoecologist24
- paleontologist22
- paleopathologist28
- paleozoologist30
- palynologist22
- papyrologist23
- parapsychologist32
- parasitologist20
- pathologist19
- pedologist17
- penologist17
- petrologist17
- pharmacologist28
- phenomenologist28
- philologist20
- phonologist20
- photobiologist25
- photogeologist24
- phraseologist21
- phrenologist21
- phycologist24
- physiologist22
- planetologist21
- pomologist19
- primatologist22
- proctologist21
- protozoologist29
- psephologist23
- psychobiologist31
- psychologist25
- psychopathologist35
- psychopharmacologist44
- psychophysiologist38
- pteridologist20
- radiobiologist21
- radiologist15
- rheologist15
- rheumatologist23
- roentgenologist22
- sedimentologist23
- seismologist18
- selenologist17
- semiologist17