b

Reading level: medium

Estimated CEFR level: B1 — Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

noun aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
noun originally thought to be a single vitamin but now separated into several B vitamins
noun a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder

Abbreviations.

[See Maps A and B.] — The Riddle of the Sands, Erskine Childers
Elizabeth B. Phelps, Anna B. — Eighty Years and More; Reminiscences 1815-1897, Elizabeth Cady Stanton
"Anyway, it wasn't Raphael B. — By Advice of Counsel, Arthur Cheney Train

bacillus

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