Countable Nouns Ending in UM and Containing IR

Browse 17 valid English countable nouns ending in UM and containing IR, from Delirium, Antirrhinum, Spirillum, Osmiridium, Chiropatagium, Miracidium and Dirdum to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with A
1 words
antirrhinum
Starts with C
7 words
chiropatagium
cheiropatagium
cheirotherium
chiropterygium
chirotherium
chamaelirium
cheiropterygium
Starts with D
2 words
delirium
dirdum
Starts with M
1 words
miracidium
Starts with O
1 words
osmiridium
Starts with R
1 words
respiratorium
Starts with S
3 words
spirillum
spiraculum
subdelirium
Starts with T
1 words
tirocinium

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