What does LDI stand for?

Anglers Craft Boat Builders, Alexandria, VA - Manufacturer code for watercraft hull identification number (USCG)

Lacy Diversified Industries, Inc. (EFIS)

Landing Direction Indicator - ICAO (FAAC)

LASER Desorption Ionization - Spectroscopy

Lauda Air - Italy - ICAO designator (FAAC)

Life Detection Instrument

Lindi - Tanzania - Airport symbol (OAG)

Linear Displacement Indicator

Load Indicator

Lockheed DataPlan, Inc. - Information service or system (IID)

Loredi Resources Ltd. - Vancouver Stock Exchange symbol

Lossless Digital Integrator (IAA)

Low-Density Indication (MCD)