21 Letter Countable Nouns

Explore 55 verified English countable nouns with 21 letters, including Humuhumunukunukuapuaa, Otorhinolaryngologist, Electroencephalograph, Hypogammaglobulinemia, Pancreatoduodenectomy, Constitutionalization and Immunoelectrophoresis. Browse these count nouns with singular and plural forms alphabetically below, or review singular and plural count rules in our noun grammar guide.

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Starts with A4 words
anticonstitutionalist
alkylbenzenesulfonate
anthropoclimatologist
aminoacetophenetidine
Starts with B
1 words
benzalphenylhydrazone
Starts with C13 words
constitutionalization
counterinterpretation
cholecystojejunostomy
counterindoctrination
choledocholithotripsy
cholecystolithotripsy
cholecystogastrostomy
choledochoenterostomy
counterpronunciamento
counterclassification
chromophotolithograph
cholecystonephrostomy
cryptocrystallization
Starts with D6 words
duodenopancreatectomy
disestablishmentarian
dacryocystorhinostomy
deintellectualization
dehydrocorticosterone
duodenocholedochotomy
Starts with E
2 words
electroencephalograph
enterocholecystostomy
Starts with G
1 words
gastroenterocolostomy
Starts with H4 words
humuhumunukunukuapuaa
hypogammaglobulinemia
heterotransplantation
hexachlorocyclohexane
Starts with I
2 words
immunoelectrophoresis
intertransformability
Starts with M3 words
mucopolysaccharidosis
methyltrinitrobenzene
microseismometrograph
Starts with O3 words
otorhinolaryngologist
overcommercialization
overindividualization
Starts with P8 words
pancreatoduodenectomy
phosphoglyceraldehyde
pseudohermaphroditism
prostatovesiculectomy
photochromolithograph
poliencephalomyelitis
pentamethylenediamine
pseudoparthenogenesis
Starts with S
2 words
stereophotomicrograph
scleroticochoroiditis
Starts with T4 words
transcendentalization
trichloroacetaldehyde
tessarescaedecahedron
transubstantiationite
Starts with U
1 words
ureteropyelonephritis
Starts with Z
1 words
zygomaticoauricularis

•Browse Countable Nouns by Letter (A to Z)

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