malamic

from The Century Dictionary.

• Noting an acid, a colorless compound, NH₂COCH(OH)CH₂COOH, prepared from diazosuccinic ester. It crystallizes in short, thick prisms and melts at 146° C.

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

• adjective (Chem.) Of or designating an acid intermediate between malic acid and malamide, and known only by its salts.