22 letters
21 letters
20 letters
19 letters
18 letters
17 letters
16 letters
15 letters
- anthropological28
- bacteriological28
- dialectological27
- ecclesiological29
- epidemiological29
- epistemological28
- hydrobiological30
- microbiological31
- neurobiological27
- paleobiological29
- paleoecological29
- paleontological27
- paleozoological35
- parasitological25
- pharmacological33
- photobiological30
- photogeological29
- radiobiological26
- sociobiological28
- unchronological30
14 letters
- aerobiological24
- archaeological26
- climatological28
- criminological28
- cryobiological29
- dermatological25
- eschatological26
- gerontological24
- herpetological26
- ichthyological30
- lichenological28
- meteorological24
- methodological27
- myrmecological32
- narratological22
- nonideological24
- nontheological25
- ornithological24
- phraseological26
- planetological26
- primatological27
- pteridological25
- semasiological24
- soteriological21
- terminological25
- thanatological24
- vexillological34
- volcanological30
13 letters
- archeological25
- autecological24
- cardiological24
- chronological26
- codicological27
- cohomological28
- cryptological28
- demonological25
- dendrological23
- deontological22
- embryological28
- entomological24
- exobiological30
- futurological25
- glaciological26
- graphological27
- gynecological28
- hematological25
- immunological28
- malacological27
- mineralogical24
- morphological28
- musicological27
- nematological24
- nonbiological25
- numerological25
- orismological23
- palynological27
- phrenological26
- physiological27
- praxeological30
- prebiological26
- proctological26
- psephological28
- psychological30
- seismological23
- selenological22
- somatological23
- speleological24
- stereological20
- synecological26
- technological26
- teratological20
- toxicological30
- unideological23
12 letters
- anthological22
- astrological19
- audiological21
- cosmological25
- ethnological22
- etymological24
- extralogical26
- genealogical22
- hagiological23
- histological21
- hydrological24
- iconological23
- karyological25
- limnological24
- lithological22
- metrological22
- museological23
- mythological26
- necrological23
- neurological21
- osteological19
- pathological24
- petrological22
- phenological25
- philological25
- phonological25
- phycological29
- radiological20
- scatological22
- semiological22
- sociological22
- tautological20
- teleological20
- tribological22
- tropological22
- unecological24
11 letters
- abiological21
- algological21
- antilogical19
- axiological25
- bryological23
- cytological23
- ethological20
- etiological18
- gemological23
- homological23
- horological20
- ideological19
- mycological26
- nomological22
- nosological19
- oncological22
- ontological19
- pedological22
- penological22
- pomological24
- rheological20
- serological18
- sinological19
- theological20
- topological21
- typological23
- virological22
10 letters
9 letters
8 letters
7 letters