dibenzyl

from The Century Dictionary.

• noun A colorless compound, O₆H₅CHCH₂C₆H₅, prepared by the action of sodium on benzyl chlorid. It forms monoclinic crystals melting at 51.5–52.5° C., and boils at 284° C. Also called symmetrical diphenylethane.

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

• noun organic chemistry, uncountable Two benzyl groups in a molecule
• noun organic chemistry, countable The bicyclic hydrocarbon C6H5-CH2-CH2-C6H5 or any of its derivatives