Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generic devices include air-conduction hearing aids and bone-conduction hearing aids. (UMDNS, 1999)

• Sorbic Acid Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
• Propenylacrylic Acid Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
• Hexadienoic Acid Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
• Sodium Sorbate Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
• Potassium Sorbate Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
• Aspergillus niger An imperfect fungus causing smut or black mold of several fruits, vegetables, etc.
• Dental Casting Technique The process of producing a form or impression made of metal or plaster using a mold.