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  • LCD

    Low Critical Dose

  • LCM

    Life Cycle Management

  • LCM

    Lymphocytic Choriomeningitis virus

  • LCP

    Liquid Crystal Polymer

  • LD

    Ladder Diagram

  • LD50

  • LD50

    Median Lethal Dose

  • LDAP

    Lightweight Directory Access Protocol

  • LDL

    Low-Density Lipoprotein

  • LDPE

    Low Density Polyethylene

  • LDRs

    Land Disposal Restrictions

  • LE

    Lupus Erythematosus

  • Leach

    To dissolve by the action of a moving liquid. For example, high purity water leaches trace impurities from glass vessels.

  • Leachable

  • Leachables

    Compounds that are present in the drug formulation as a result of direct contact with the component under normal conditions. Leachables are typically a subset of extractables but may also include reaction products.(also see: Extractables)

  • Leaching

    The release of plastic components or additives to the product.(Contrast with: Sorption)

  • Leak (of air filter system)

    Penetration of contaminants that exceed an expected value of downstream concentration through lack of integrity or defects.

  • Leak (of separative devices)

    Defect revealed by testing under a pressure differential after corrections for atmospheric conditions.

  • Leakage Test

    Test performed to confirm that the final filters are properly installed by verifying that there is absence of bypass leakage in the installation, and that the filters and the grid system are free of defects and leaks.

  • Leaning Out

    Refinement of operating costs or procedures to the least amount of effort required.

  • LEED

    Leadership in Environmental and Energy Design

  • LEED

    Leadership in Energy and Environmental Design

  • LEED (Leadership in Energy and Environmental Design)

    A U.S. developed green building certification program that recognizes best-in-class building strategies and practices. To receive LEED certification, building projects satisfy prerequisites and earn points to achieve different levels of certification.

  • LEED AP

    Leadership in Environmental and Energy Design Accredited Professional

  • Legacy Applications