nMyrosin(Chem) An enzyme, resembling diastase, found in mustard seeds.
Century Dictionary and Cyclopedia
nmyrosinA nitrogenous ferment contained in the seeds of black mustard, and possibly in horse-radish-root. By its action potassium myronate is decomposed, forming potassium sulphate, glucose, and oil of mustard.
Myrosin, 77, 88, 149, 189.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher