ALD

ALD may refer to:

• Assistive Listening Device or Assisted Listening Device
• Ald (unit), An old Mongol measurement unit.
• Activities of Limited Duration, or Appointments of Limited Duration, a contract modality within the United Nations
• Alcoholic liver disease
• Aldehyde dehydrogenase, a type of enzyme
• aldolase, an enzyme occurring naturally in animals
  • ALD (max) or ALD_max, a maximum measurement of ALD which may be measured in humans as a medical test
• Adrenoleukodystrophy, sometimes treated with Lorenzo's oil
• ALD-52, N-acetyl-LSD; a compound similar in action and made from Lysergic acid diethylamide (LSD)
• Alderley Edge railway station (National Rail code) in Cheshire, England
• Alerta Airport, from its IATA code.
• Atomic layer deposition
• The ICAO Code for Albion Aviation, United Kingdom
• Assistant Lighting designer
• A commonly used abbreviation for the Liberty Dollar
• An abbreviation for the title Alderman. (e.g. Ald. Johnathon Wright)
• The Oxford Advanced Learner's Dictionary (frequently used in English classes in Germany)

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