boron

beryllium$\longleftarrow$ 5 $\longrightarrow$carbon

Pronunciation

• IPA ^(key): /ˈbɔərɒn/

• Audio (US)

  (file)

• Hyphenation: bo‧ron

Noun

Singular boron

Plural none

1. A hard, black, or brown, chemical element with the atomic number 5 and the symbol B.

   The scientist used boron in his experiment.

   A lot of glass is made using boron.