methacrylic acid: an unsaturated acid (C4H6O2) used to make resins and plastics
acid: any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
moniliaceae: family of imperfect fungi having white or brightly colored hyphae and spores that are produced directly on the mycelium and not aggregated in fruiting bodies