L1

L1 or L-1 may be:

The first Lagrange Point in an astronomical Solar System
The first lumbar vertebra in Human anatomy
L1 (protein), a cell adhesion molecule.
L1 family, a protein family of cell adhesion molecules.
Haplogroup L1 (mtDNA)
The Level-1 CPU cache in a computer
L¹, the space of Lebesgue integrable functions in mathematics.
The L-1 visa for working in the United States.
the IATA code for Lufthansa Systems AG
A person's first language
Ligue 1, the top division of French football.

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