benzal

from The Century Dictionary.

• noun An organic radical having the formula C₆H₅CH and a valence of two.
• noun A prefix sometimes used to indicate that a compound is derived from benzaldehyde.

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

• noun (Chem.) A compound radical, C6H5.CH=, of the aromatic series, related to benzyl and benzoyl; -- used adjectively or in combination.

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

• noun chemistry A transparent crystalline substance, C6H5.CO. NH2, obtained by the action of ammonia on benzoyl chloride and by several other reactions with benzoyl compounds.