LDA
# LDA

LDA may refer to:

## Aviation

* Localizer type directional aid, an instrument approach to an airport
* Landing distance available, the length of runway that is available for the ground run of an airplane landing

## Law

* Legal document assistant, a non-lawyer authorized to assist with the preparation of legal instruments
* Lobbying Disclosure Act of 1995, legislation in the United States
* Legal drinking age, the minimum age at which one can legally consume alcohol

## Medicine

* Left-displaced abomasum, condition of ruminants
* Low dose allergens, a variant of enzyme potentiated desensitization

## Science and technology

* Laser Doppler anemometry, technique to measure velocity
* Latent Dirichlet allocation, a generative statistical model
* Linear diode array, used for digitizing x-ray images
* Linear discriminant analysis, a type of statistical analysis
* Lithium diisopropylamide, a strong base in chemistry
* Local delivery agent, software that delivers e-mail messages
* Local-density approximation, in quantum-mechanical density functional theory
* Low density amorphous ice, an amorphous solid form of water
* Lobate debris apron, a type of geologic feature observed on Mars

## Organizations

* Lahore Development Authority, agency in Lahore, Pakistan
* Liga Deportiva Alajuelense, a Costa Rican football club
* London Democratic Association, 19th century organisation in England
* London Development Agency, regional development agency for the London region in England
* Lord's Day Alliance, an ecumenical Christian first-day Sabbatarian organization

## Other uses

* LDA (singer)
* Little Dark Age, a 2018 studio album by MGMT
