Countable Nouns That Start with B and End with IUM

Explore 19 verified English countable nouns starting with B and ending with IUM, including Bacterium, Biennium, Basidium, Bdellium, Brachium, Ballium and Bucranium. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with BA3 words
bacterium
basidium
ballium
Starts with BD
1 words
bdellium
Starts with BE
1 words
benzenediazonium
Starts with BI3 words
biennium
bimillennium
bivium
Starts with BO3 words
botrychium
bothrium
botrydium
Starts with BR5 words
brachium
bronchium
brontotherium
bromatium
brimborium
Starts with BU3 words
bucranium
bullarium
bulbocodium

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