(archaic or humorous) It seems to me.

(organic chemistry) A colourless liquid, an unsaturated organic acid, used in the manufacture of resins and plastics, with the chemical formula CH₂:C(CH₃)COOH.

(organic chemistry) The methyl ester of methacrylic acid, CH₂:C(CH₃)COOCH₃, used as a monomer in the manufacture of polymethyl methacrylate plastics.

(organic chemistry) Any salt or ester of methacrylic acid, especially an ester used in the manufacture of resins and plastics. / A resin manufactured from methacrylic acid or a methacrylate.

(organic chemistry) A thermoplastic transparent plastic manufactured by the polymerization of methyl methacrylate, often used in place of glass - it being lighter, softer and not shattering on impact.

(organic chemistry) The compound methanol.

simple past tense and past participle of methylate

denatured by the addition of methyl alcohol / (chemistry) subject to methylation

Denatured ethyl alcohol used as a fuel and a solvent, and usually free of taxes on alcohol. Denaturing is achieved by the addition of methyl alcohol, frequently additional materials are added to give smell and colour to the substance.

(organic chemistry) The simplest aliphatic alcohol, CH₃OH; a colourless, toxic, inflammable liquid, used as a solvent, antifreeze, in the chemical industry, and in the preparation of methylated spirit.