boride

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A binary compound of boron with a more electropositive element.

from The Century Dictionary.

• noun A primary compound of boron with a metallic element.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A binary compound of boron with a more positive or basic element or radical; -- formerly called boruret.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry the B3− anion
• noun chemistry any binary compound of boron and a more electropositive element