ALD

ALD or Ald or may refer to:

Medicine, science and technology

• Adrenoleukodystrophy, a rare demyelinating disease linked to the X chromosome
• Alcoholic liver disease
• Aldolase or ALD, an enzyme occurring naturally in animals
• Assistive listening device used to improve hearing ability
• Atomic layer deposition, a thin-film deposition technique
• Asymmetric Laplace distribution, in probability theory and statistics

Places

• ALD, National Rail code for Alderley Edge railway station, Cheshire, UK
• Alderson station, West Virginia, United States, Amtrak station code ALD
• ALD, station code for Allahabad Junction railway station, Uttar Pradesh, India
• ALD, IATA code for Alerta Airport, Peru

Politics

• Autonomy Liberty Democracy, a coalition of centre-left political parties in Aosta Valley, Italy
• Arakan League for Democracy, a political party active in Rakhine State, Myanmar (Burma)

Other uses

• Ald (unit), an old Mongolian measure equal to the length between a man's outstretched arms
• ALD Automotive, a French fleet managing and operational car leasing company
• Alderman, a member of a municipal assembly or council
• Assistant lighting designer, in the theatre
• Oxford Advanced Learner's Dictionary
• ALD, the Liberty dollar (private currency)

See also

• Aldehyde, an organic compound
  • Aldehyde dehydrogenase (ALDH), a type of enzyme
• Aldolase, or Fructose-bisphosphate aldolase, an enzyme
• ALD-52, a chemical analogue of lysergic acid diethylamide (LSD)