See Also: couac(dictionary)

vanillin (iou) and couac (iou)


vanillin (iou)



vanillin noun. M19.
[from VANILLA + -IN1.]
Chemistry. A sweet-smelling crystalline aldehyde which is the chief essential constituent of vanilla, used in flavourings, perfumes, and pharmaceuticals and in chemical synthesis; 3-methoxy-4-hydroxybenzaldehyde, CH3OC6H3(OH)CHO.
vanillic adjective derived from or related to vanillin;
vanillic acid, a carboxylic acid, CH3OC6H3(OH)COOH, formed by oxidation of vanillin: M19.
vanillyl noun (Chemistry & Biochemistry) the radical CH3OC6H3(OH)CH L19.

couac (iou)



couac noun. L19.
[French: imit.]
Music. A quacking sound made by bad blowing on the clarinet, oboe, or bassoon.