-ology (Greek: a suffix; talk, speak, one who deals with a specific topic, one who speaks [in a manner]).Through the years it has come to mean: "study of" or "science of".acarology: 
adenology: 
aerobiology: 
aerology: 
aetiology: 
algology: 
allergology: 
amphibiology: 
anaesthesiology: 
anemology: 
anesthesiology: 
angiology: 
anthology: 
anthropobiology: 
anthropology: 
arachnology: 
archaeology: 
arthrology: 
astrology: 
audiology: 
bacteriology: 
balneology: 
batology: 
biology: 
biotechnology: 
brachylogy: 
bryology: 
cacology: 
caliology: 
campanology: 
carcinology: 
cardiology: 
carpology: 
cerebrology: 
cetology: 
choledology: 
chondrology: 
choreology: 
chorology: 
Christology: 
chronology: 
climatology: 
codicology: 
conchology: 
cosmetology: 
cosmology: 
craniology: 
criminology: 
crustaceology: 
cryptology: 
cytology: 
dactylology: 
deltiology: 
demonology: 
dendrochronology: 
dendrology: 
dermatology: 
dipterology: 
doxology: 
ecclesiology: 
ecology: 
Egyptology: 
electrobiology: 
electrophysiology: 
electrotechnology: 
embryology: 
emetology: 
endocrinology: 
enology (variation of oenology): 
enterology: 
entomology: 
epidemiology: 
epistemology: 
erotology: 
eschatology: 
ethnoarchaeology: 
ethnology: 
ethnomusicology: 
ethology: 
etiology: 
etymology: 
exobiology: 
futurology: 
gastroenterology: 
gastrology: 
gemmology: 
genealogy: 
geochronology: 
geology: 
geomorphology: 
gerontology: 
glaciology: 
glottochronology: 
glyptology: 
graphology: 
gynaecology: 
gynecology: 
haematology: 
hagiology: 
haplology: 
helminthology: 
hematology: 
hemipterology: 
heortology: 
hepatology: 
herniology: 
herpetology: 
heterology: 
hierology: 
hippology: 
histology: 
histopathology: 
homology: 
horology: 
hydrology: 
hygrology: 
hypnology: 
iatrology: 
ichthyology: 
ichthyopaleontology: 
iconology: 
ideology: 
immunology: 
iridology: 
kinesiology: 
laryngology: 
lepidopterology: 
leprology: 
lexicology: 
limnology: 
lithology: 
malacology: 
mammalogy: 
martyrology: 
mastology: 
menology: 
merology: 
metapsychology: 
meteorology: 
metrology: 
microbiology: 
mineralogy: 
morphology: 
muscology: 
musicology: 
mycology: 
myology: 
myrmecology: 
mythology: 
necrology: 
nematology: 
neonatology: 
nephology: 
nephrology: 
neurology: 
neurology: 
neuropathology: 
neuropathology: 
neurophysiology: 
nomology: 
nosology: 
numismatology: 
odontology: 
oenology: 
oncology: 
oneirology: 
ontology: 
oology: 
ophiology: 
ophthalmology: 
ornithology: 
orology: 
osteology: 
otolaryngology: 
otology: 
otorhinolaryngology: 
palaeoclimatology: 
palaeontology: 
paleoclimatology: 
paleontology: 
paleozoology: 
palynology: 
papyrology: 
parapsychology: 
parasitology: 
pathology: 
patrology: 
pedology: 
penology: 
periodontology: 
petrology: 
pharmacology: 
phenomenology: 
philology: 
phonology: 
photobiology: 
phraseology: 
phrenology: 
phycology: 
physiology: 
phytology: 
phytology: 
phytopathology: 
pneumatology: 
polemology: 
pomology: 
posology: 
potamology: 
proctology: 
promorphology: 
protozoology: 
psephology: 
psychology: 
psychopathology: 
psychophysiology: 
pteridology: 
radiobiology: 
radioimmunology: 
radiology: 
reflexology: 
rheology: 
rheumatology: 
rhinology: 
Satanology: 
scatology: 
scientology: 
seismology: 
selenology: 
semasiology: 
semiology: 
serology: 
sinology: 
sitology: 
sociobiology: 
sociology: 
somatology: 
soteriology: 
speleology: 
sphygmology: 
splenology: 
stomatology: 
symptomatology: 
syndesmology: 
synecology: 
tautology: 
technology: 
tegestology: 
teleology: 
tenology: 
teratology: 
terminology: 
terotechnology: 
thanatology: 
theology: 
thremmatology: 
topology: 
toxicology: 
traumatology: 
tribology: 
trichology: 
tropology: 
typhlology: 
typology: 
ufology: 
uranology: 
urology: 
venereology: 
vexillology: 
virology: 
volcanology: 
vulcanology: 
zoology: 
zoopaleontology: 
zymology: 
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