LSA

LSA is an acronym standing for:


 * La Salle Academy, a private, Catholic, all boys high school in New York City.
 * Late Stone Age (Neolithic)
 * Latent semantic analysis
 * Latvijas Studentu apvienība
 * Law and Society Association
 * Learn and Serve America
 * LHC Software Applications (computer software package to control the Super Proton Synchrotron and the Large Hadron Collider at CERN)
 * Licenciate of the Society of Apothecaries
 * Lichen sclerosus et atrophicus (Skin disease)
 * Light-sport aircraft
 * Linear successive approximation
 * Linguistic Society of America
 * Link-state advertisement
 * Linseed Sunflower Almond, a mix used in Dr Sandra Cabot's Liver Cleansing Diet (Linseed is called Flaxseed in the USA)
 * Local Security Authority, the centre of the Windows NT security subsystem (lsass.exe).
 * Local Spiritual Assembly, an administrative body of the Bahá'í Faith.
 * Logistics Support Analysis, a support planning methodology.
 * Logistics Support Area, a large military depot.
 * London Small Arms Co. Ltd, an English gun-making firm between 1866-1935.
 * Lone Scouts of America, an independent Scouting organization that merged into the Boy Scouts of America
 * Lute Society of America
 * Lutheran Services in America, the largest network of human service organizations in the United States.
 * College of Literature, Science, and the Arts at the University of Michigan
 * Autonomous Systems Laboratory or Laboratório Sistemas Autónomos it's a research unit of the Institute of Engineering of the Porto, a school of the Porto Polytechnic Institute.
 * Lysergic acid amide (ergine), a compound closely related to LSD

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