Nouns Ending in US and Containing TO

Browse 73 valid English nouns ending in US and containing TO, from Octopus, Autofocus, Brontosaurus, Lactobacillus, Torus, Cytomegalovirus and Streptococcus to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review pluralization and capitalization rules.

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Starts with A
13 words
autofocus
autobus
altocumulus
apatosaurus
altostratus
albertosaurus
artocarpus
antoninianus
aegyptopithecus
aetobatus
aetosaurus
anelectrotonus
anoectochilus
Starts with B
2 words
brontosaurus
brachistocephalus
Starts with C
12 words
cytomegalovirus
cryptococcus
catostomus
cyclotosaurus
ceratodus
cetorhinus
catoptrophorus
chaetopterus
ceratoglossus
chaetodipterus
catochus
clavodeltoideus
Starts with D
3 words
deltoideus
dendroctonus
dermatonosus
Starts with E
6 words
edmontosaurus
elephantopus
eucinostomus
electrotonus
epiceratodus
emprosthotonus
Starts with F
2 words
fractostratus
fractocumulus
Starts with G
1 words
giganotosaurus
Starts with H
1 words
hectocotylus
Starts with K
1 words
kinetonucleus
Starts with L
2 words
lactobacillus
leptocephalus
Starts with M
1 words
motorbus
Starts with N
2 words
notocactus
nematodirus
Starts with O
4 words
octopus
otocinclus
opisthotonus
octonarius
Starts with P
5 words
plecostomus
palatopharyngeus
protospatharius
phototonus
plicatoperipatus
Starts with S
13 words
streptococcus
stratocumulus
sartorius
streptobacillus
streptocarpus
schistocephalus
sitophilus
sternocleidomastoideus
schistosomus
schistomelus
solenostomus
schistocormus
schistoprosopus
Starts with T
5 words
torus
tonus
tophus
togavirus
totanus

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