What does ILMA stand for?

Immunochemiluminometric Assay - Analytical biochemistry

Incandescent Lamp Manufacturers Association - Defunct (EA)

Independent Lubricant Manufacturers Association (EA)

International Licensing and Merchandisers' Association - Later, ILIMA (EA)

International LIDAR Mapping Association

Intraocular Lens Manufacturers Association - Defunct (EA)

Morton Arboretum, Lisle, IL - Library symbol - Library of Congress (LCLS)