hordeic

from The Century Dictionary.

• Noting an acid, a colorless compound, C₁₂H₂₄O₂, prepared by the action of dilute sulphuric acid on barley. It crystallizes in plates, molting at 60° C.

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

• adjective (Chem.) Pertaining to, or derived from, barley.