21 letters
20 letters
18 letters
17 letters
16 letters
15 letters
14 letters
- anthropologist23
- astrobiologist20
- bacteriologist23
- dialectologist22
- ecclesiologist24
- epidemiologist24
- epistemologist23
- geohydrologist24
- hydrobiologist25
- kremlinologist26
- liturgiologist21
- microbiologist26
- neurobiologist22
- paleobiologist24
- paleoecologist24
- paleontologist22
- paleozoologist30
- parasitologist20
- pharmacologist28
- photobiologist25
- photogeologist24
- protozoologist29
- radiobiologist21
- rheumatologist23
- sociobiologist23
13 letters
- archaeologist21
- campanologist26
- climatologist23
- cosmetologist22
- criminologist23
- cryobiologist24
- dermatologist20
- diabetologist20
- electrologist20
- geostrategist17
- gerontologist19
- herpetologist21
- ichthyologist25
- lichenologist23
- malariologist20
- martyrologist21
- meteorologist19
- methodologist22
- myrmecologist27
- narratologist17
- neonatologist18
- onomatologist20
- ornithologist19
- phraseologist21
- planetologist21
- primatologist22
- pteridologist20
- thanatologist19
- thaumaturgist22
- vexillologist29
- victimologist26
- volcanologist25
- vulcanologist26
12 letters
- angelologist19
- archeologist20
- assemblagist21
- bibliopegist24
- cardiologist19
- chronologist21
- conchologist24
- cryptologist23
- demonologist20
- dendrologist18
- deontologist17
- embryologist23
- entomologist19
- enzymologist30
- escapologist21
- exobiologist25
- futurologist20
- glaciologist21
- graphologist22
- gynecologist23
- hematologist20
- immunologist23
- lexicologist26
- malacologist22
- metallurgist20
- mineralogist19
- morphologist23
- musicologist22
- nematologist19
- nephrologist21
- nonbiologist20
- numerologist20
- oceanologist19
- palynologist22
- papyrologist23
- phrenologist21
- physiologist22
- proctologist21
- psephologist23
- psychologist25
- seismologist18
- selenologist17
- speleologist19
- technologist21
- teratologist15
- toxicologist25
- trichologist20
- urbanologist20
11 letters
- anthologist17
- audiologist16
- cosmologist20
- ethnologist17
- etymologist19
- gemmologist22
- genealogist17
- histologist16
- hydrologist19
- iridologist15
- limnologist19
- mammalogist23
- metrologist17
- museologist18
- mycophagist26
- mythologist21
- necrologist18
- neurologist16
- osteologist14
- pathologist19
- petrologist17
- philologist20
- phonologist20
- phycologist24
- radiologist15
- semiologist17
- sociologist17
- teleologist15
- tribologist17
10 letters
- algologist16
- bryologist18
- cetologist16
- cytologist18
- ethologist15
- fetologist16
- gemologist18
- horologist15
- ideologist14
- mixologist23
- monologist17
- mycologist21
- nostalgist14
- oncologist17
- ontologist14
- pedologist17
- penologist17
- pomologist19
- rheologist15
- serologist13
- sexologist20
- sinologist14
- strategist12
- suffragist19
- topologist16
- typologist18
- virologist17
9 letters
8 letters
6 letters
5 letters
4 letters