boron
bo·ron
noun \ˈbō(ə)r-ˌän, ˈbȯ(ə)r-\Definition of BORON
: a trivalent metalloid element found in nature only in combination and used in metallurgy and in composite structural materials—symbol B; see element table
—bo·ron·ic \bȯr-ˈän-ik, bōr-\ (audio pronunciation) adjective
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