What does ALAD stand for?

Abnormal Left Axis Deviation (MAE)

Academic Librarians Assisting the Disabled - ASCLA (AL)

Academic Librarians Assisting the Disabled Discussion Group - Association of Specialized and Cooperative Library Agencies

Aladdin Trailer - NCIC trailer make code

Aminolaevulinate Dehydratase - Also, ALD - An enzyme

Aminolevulinic Acid Dehydrase (DB)

Arid Lands Agricultural Development - Program - Later, ICARDA - Middle East

Army Legal Aid Department (SAUO)

Automatic Liquid Agent Detector (AABC)

Delta-Aminolevulinic Acid Dehydratase