21 letters
20 letters
18 letters
17 letters
16 letters
- anesthesiologies22
- antitechnologies26
- biometeorologies25
- cytotechnologies30
- histopathologies26
- metapsychologies32
- nanotechnologies27
- neuropathologies26
- neuroradiologies22
- otolaryngologies25
- paleopathologies28
- parapsychologies32
- periodontologies24
- phytopathologies31
- phytosociologies29
- symptomatologies30
15 letters
14 letters
- anthropologies23
- astrobiologies20
- bacteriologies23
- dialectologies22
- ecclesiologies24
- epidemiologies24
- epiphytologies27
- epistemologies23
- geohydrologies24
- hydrobiologies25
- kremlinologies26
- liturgiologies21
- microbiologies26
- neurobiologies22
- paleobiologies24
- paleoecologies24
- paleontologies22
- paleozoologies30
- parasitologies20
- pathobiologies25
- pharmacologies28
- photobiologies25
- photogeologies24
- pneumatologies25
- protozoologies29
- radiobiologies21
- radioecologies21
- rheumatologies23
- sociobiologies23
13 letters
- aerobiologies19
- amphibologies27
- archaeologies21
- campanologies26
- climatologies23
- cosmetologies22
- criminologies23
- cryobiologies24
- dactylologies23
- dermatologies20
- electrologies20
- eschatologies21
- gerontologies19
- gynaecologies24
- herpetologies21
- ichthyologies25
- kinesiologies21
- laryngologies22
- lichenologies23
- malariologies20
- martyrologies21
- meteorologies19
- methodologies22
- myrmecologies27
- narratologies17
- neonatologies18
- onomatologies20
- ornithologies19
- phraseologies21
- planetologies21
- primatologies22
- pteridologies20
- reflexologies27
- semasiologies19
- soteriologies16
- terminologies20
- thanatologies19
- vexillologies29
- victimologies26
- volcanologies25
- vulcanologies26
12 letters
- angelologies19
- archeologies20
- autecologies19
- balneologies20
- bibliologies22
- cardiologies19
- chronologies21
- codicologies22
- cohomologies23
- conchologies24
- craniologies19
- cryptologies23
- demonologies20
- dendrologies18
- deontologies17
- embryologies23
- entomologies19
- enzymologies30
- escapologies21
- exobiologies25
- futurologies20
- glaciologies21
- graphologies22
- gynecologies23
- hematologies20
- immunologies23
- lexicologies26
- malacologies22
- missiologies18
- morphologies23
- musicologies22
- nematologies19
- nephrologies21
- numerologies20
- oceanologies19
- organologies18
- orismologies18
- palynologies22
- papyrologies23
- phlebologies24
- phrenologies21
- physiologies22
- praxeologies25
- proctologies21
- psephologies23
- psychologies25
- seismologies18
- selenologies17
- semeiologies18
- somatologies18
- speleologies19
- stereologies15
- synecologies21
- technologies21
- teratologies15
- toxicologies25
- trichologies20
- urbanologies20
11 letters
- aetiologies14
- anthologies17
- astrologies14
- audiologies16
- cosmologies20
- ethnologies17
- etymologies19
- gemmologies22
- hagiologies18
- haplologies20
- histologies16
- hydrologies19
- hymnologies22
- iconologies18
- iridologies15
- karyologies20
- limnologies19
- lithologies17
- metrologies17
- museologies18
- mythologies21
- necrologies18
- neurologies16
- osteologies14
- pathologies19
- petrologies17
- phenologies20
- philologies20
- phonologies20
- phycologies24
- radiologies15
- scatologies17
- semiologies17
- sociologies17
- symbologies22
- tautologies15
- teleologies15
- tribologies17
10 letters
- aerologies13
- agrologies15
- algologies16
- apiologies16
- areologies13
- axiologies20
- bryologies18
- cetologies16
- cytologies18
- doxologies21
- ethologies15
- etiologies13
- fetologies16
- gemologies18
- homologies18
- horologies15
- ideologies14
- menologies17
- misologies16
- mixologies23
- monologies17
- mycologies21
- nomologies17
- nosologies14
- oecologies16
- oenologies14
- oinologies14
- oncologies17
- ontologies14
- pedologies17
- penologies17
- pomologies19
- posologies16
- pyrologies18
- rheologies15
- serologies13
- sexologies20
- sinologies14
- sitologies13
- theologies15
- tocologies16
- tokologies17
- topologies16
- typologies18
- virologies17
- zymologies27
9 letters
8 letters
7 letters