Countable Nouns Ending in IUM and Containing RI
Explore 251 verified English countable nouns ending in IUM and containing RI, including Equilibrium, Aquarium, Auditorium, Atrium, Bacterium, Delirium and Moratorium. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.
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Starts with A
21 words aquarium
auditorium
atrium
anthurium
armamentarium
antheridium
apodyterium
archaebacterium
aerarium
arbitrium
appressorium
aprium
aspersorium
acroterium
apterium
anticlinorium
archesporium
avicularium
anoplotherium
acaridomatium
amphigastrium
Starts with B
5 words bacterium
bullarium
brontotherium
bothrium
brimborium
Starts with C
24 words crematorium
columbarium
clostridium
cryptosporidium
corium
criterium
cyanobacterium
conservatorium
ciborium
calvarium
cafetorium
corynebacterium
caldarium
cinerarium
cladosporium
collyrium
centaurium
cephalosporium
closterium
cypripedium
conarium
cynomorium
ceratotherium
clavicytherium
Starts with D
9 words delirium
disequilibrium
dolphinarium
deinotherium
desiderium
diphyllobothrium
digitorium
dinotherium
disciplinarium
Starts with E
24 words equilibrium
emporium
endometrium
epineurium
epigastrium
eupatorium
endoneurium
enterobacterium
eubacterium
excubitorium
elotherium
exosporium
embothrium
endoperidium
entomosporium
epitrichium
evangelistarium
evangelarium
exoperidium
emissarium
endarterium
evangeliarium
endosporium
episporium
Starts with F
6 words fusarium
frigidarium
formicarium
florilegium
fumatorium
flabellarium
Starts with G
1 words gymnatorium
Starts with H
11 words honorarium
herbarium
hypochondrium
haustorium
hypogastrium
helminthosporium
hydropericardium
hyracotherium
hesperidium
hematopericardium
hydropneumopericardium
Starts with I
6 words imperium
insectarium
infusorium
interministerium
inclinatorium
inhalatorium
Starts with L
2 words leprosarium
lubritorium
Starts with M
13 words moratorium
myometrium
magisterium
manubrium
mycobacterium
megatherium
ministerium
mesogastrium
mortarium
martyrium
maggotorium
motorium
muscatorium
Starts with N
8 words natatorium
nerium
nanobacterium
nephridium
nitrobacterium
nidularium
nitrosobacterium
nototherium
Starts with O
7 words oceanarium
osmiridium
ostensorium
orarium
ossarium
osmeterium
ophidiarium
Starts with P
24 words planetarium
pericardium
primordium
praetorium
propionibacterium
puerperium
principium
perichondrium
pericranium
perimysium
pomerium
psalterium
peridium
perineurium
perionychium
perithecium
pneumopericardium
proprium
puparium
pastorium
peridinium
panaritium
perigonium
poterium
Starts with Q
2 words quadrivium
quadriennium
Starts with R
4 words rosarium
rhynchosporium
respiratorium
ranarium
Starts with S
24 words sanatorium
solarium
sanitarium
scriptorium
sensorium
seaquarium
sudarium
sacrarium
scolopendrium
sisymbrium
syllabarium
sudatorium
spermarium
synclinorium
sisyrinchium
synedrium
septarium
sivatherium
suspensorium
samotherium
schizachyrium
sporidium
subdelirium
salutatorium
Starts with T
14 words terrarium
trillium
trivium
tentorium
triennium
tepidarium
triclinium
triforium
trifolium
teucrium
termitarium
tripudium
tridominium
trichosporangium
Starts with U
2 words unguentarium
uintatherium
Starts with V
5 words vivarium
vomitorium
velarium
vivisectorium
vibracularium
Starts with Z
2 words zoarium
zoodendrium