SLE

SLE may refer to:

Medicine

• Systemic lupus erythematosus, an autoimmune disease affecting multiple systems in the body
• Slit lamp examination, as used to examine the eye during an eye examination
• St. Louis encephalitis, an inflammation of the brain caused by the SLE virus, a member of the flaviviruses

Science and mathematics

• Semiconductor luminescence equations, a set of equations in theoretical physics to describe photoluminescence of semiconductors
• Sea level equation, the equation that governs the sea level variations in response to the melting of continental ice sheets
• System of linear equations, a collection of linear equations involving the same set of variables.
• Schramm–Loewner evolution, or stochastic Loewner evolution, a conformally invariant stochastic process

Transportation

• IATA Airport Code for McNary Field, the municipal airport for Salem, Oregon
• Seletar Expressway, a major divided highway in the northeast of Singapore
• Sleeper Either Class, a type of railway sleeping car
• Shore Line East commuter rail service in Connecticut, USA

Other

• Sri Lankan English, English language spoken in Sri Lanka
• NYSE stock exchange code for the Sara Lee Corporation
• Separate legal entity, type of legal entity with detached accountability
• Simple List Extensions, proposed as an extension to existing syndication technologies such as RSS and Atom to make it easier for clients to support the ordering and filtering of lists
• Single loss expectancy in risk analysis manufactured in Britain
• Sober living environment, facilities used by addicts recovering from substance abuse
• Societas Linguistica Europaea, a linguistics society
• Spearhead Land Element, the 'Extremely high readiness' infantry battalion of the British armed forces that is first to deploy in anywhere in time of need
• Structured Liberal Education (Stanford University), a department and humanities program for freshmen at Stanford University
• Supporting Leading Edge, a structure of a power kite
• SUSE Linux Enterprise
• In socionics, a Sensory Logical Extrovert
• The Space Link Extensions of CCSDS
• The /System/Library/Extensions, a filepath in Apple's OSX