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  • LPS (Lipopolysaccharide)

    Molecule found in the outer cell walls of some bacteria that trigger the immune response resulting in fever. Also referred to as pyrogens or as endotoxins, though, strictly speaking, they are not endotoxins but predominant components of endotoxins produced by gram-negative bacteria. Common cause of pyrogenic reactions in parenteral products.

  • LRD

    Laboratory Raw Data

  • LRV

    Log Reduction Value

  • LS

    Light Scattering (static or dynamic)

  • LSI

    Large Scale Integration

  • LUST

    Leaking Underground Storage Tanks

  • LV

    Low Voltage

  • LVP

    Large Volume Parenteral

  • Lymphocyte

    A type of white blood cell accounting for 20-25% of the white cells in humans. They are mostly non-phagocytic and actively mobile and are continuously made in the bone marrow. They are the immediate precursors of all antibody-forming cells.

  • Lymphokine

    A class of soluble proteins produced by white blood cells that plat a role, as yet not fully understood, in the immune response.

  • Lymphoma

    Cancer originating in the lymph nodes, spleen and other lympho-reticular sites.

  • LYO

    Lyophilizer (freeze dryer)

  • Lyophilization

    The creation of a solid from a liquid by means of freezing, sublimation, and desorption.

  • Lyophilization

    Also known as freeze drying, it is a means of stabilizing wet substances by freezing them, then evaporating the resulting ice, to leave a substantially dry, porous residue which has the same size and shape of the original frozen mass.

  • Lyophilizer

    A freeze dryer.

  • Lysate

    A product of lysis that is the disintegration or dissolution of the cell walls.

  • Lysed-cell Slurry

    A solution of the debris caused by disintegrating, broken cells.

  • Lysine

    An essential, basic amino acid obtained from many proteins by hydrolysis.

  • Lysis

    The dissolution or destruction of red blood cells, bacteria, or other antigens by a specific lysin (antibody), or by the action of detergents, thus allowing the cell contents to escape.

  • Lysosome

    A membrane-surrounded organelle in the cytoplasm of eukaryotic cells; it contains many hydrolytic enzymes and is responsible for degrading proteins and other materials ingested by the cell.

  • Lytic

    A phase of the virus life cycle during which the virus replicates within the host cell, releasing a new generation of viruses when the infected cell lyses.