L (disambiguation)
Template:Wiktionary L, or l, is the twelfth letter of the English alphabet.
L or l may also refer to: Template:TOC right
Units of measurement and currency
- L, Langmuir (unit), a unit of exposure to a surface
- L, length in general (often the longest dimension, as opposed to width, height, or depth)
- Horse length, used in horse racing
- Boat length, used in rowing
- L, l or ℓ, litre unit
- Ancient Roman libra (translated as "pound"), a weight measure with derivative units denoted with "L" or a derived character:
- Pound (currency), a number of currencies from the British Empire, abbreviated £ or (historically) "l", "L", or "". (Some fonts use a two-bar version resembling the lira sign ₤.)
- Livre (disambiguation), a number of currencies from the French Empire, with the original abbreviated "£", "₶", or "lt"
- Lira, a number of currencies from Italy and the Ottoman Empire, abbreviated as ₤
- Leaf (books) ("l." or ℓ), an alternate numbering for books, in contrast to "p." for pages
- Specification for a line of text, for example "l. 3" is the third line of text
Science
Mathematics
- Template:Var, constructible universe, a particular class of sets which can be described entirely in terms of simpler sets
- L-function
- Laplace transform
- , likelihood function
- ℓp space, the space of sequences with a finite p-norm
- Lp space, a function space defined using a natural generalization of the p-norm for finite-dimensional vector spaces
Computing
- L (complexity), a complexity class in computational complexity theory
- L-notation, a notation for running times of subexponential algorithms, often used in number theory
- L – A Mathemagical Adventure, a 1984 computer game
- Android L, code name for Android Lollipop
Physics
- Angular momentum
- Inductance, the ratio of the magnetic flux to the current in an electrical circuit
- Latent heat
- Luminosity
- Mean free path, the average distance traveled by a moving particle between successive collisions
- Class L, a stellar classification
- Galactic longitude (l), in the galactic coordinate system
Chemistry
- l, abbreviation for liquid
- Avogadro constant, in some German scientific literature
- Leucine, an α-amino acid
- L- prefix, a levorotatiory compound
- Lewisite, a blister agent
Biology
- Carl Linnaeus, in botanist author citations (L.)
- Haplogroup L (Y-DNA)
- Vertebra in the lumbar region of the spinal cord
- ATC code L Antineoplastic and immunomodulating agents, a section of the Anatomical Therapeutic Chemical Classification System
Music
- L (French singer), French singer-songwriter
- L (South Korean singer), vocalist of Korean boy band Infinite
- L Marshall, British singer credited as L on the Wretch 32 song "Traktor"
- Lesure Number, music catalogue identifier for the compositions of Claude Debussy
- L Number, classification of the compositions of Franz Benda according to the catalogue of Douglas A. Lee
Albums
- L (Godley & Creme album) (1978)
- L (Ayumi Hamasaki EP) (2010)
- L (Steve Hillage album) (1976)
- L (Candy Lo EP) (2008)
- L (Moe album) (2000)
Vehicles and transportation
- L (Los Angeles Railway)
- Chicago "L", a rapid transit system in Chicago
- L (New York City Subway service)
- L Line (Los Angeles Metro)
- Market-Frankford Line, currently branding to L.
- Transilien Line L, a line of the Paris transport network
- The official West Japan Railway Company service symbol for:
- L-plate, a plate for learning drivers under instruction
- L Taraval (San Francisco Muni)
- Nissan L engine
- L, the low gear of an automatic transmission
- LB&SCR L class, a British tank locomotive on the London, Brighton, and South Coast Railway
Companies and organisations
- L. Inc., California-based corporation that makes organic personal care products
- Liberals (Sweden), a political party in Sweden
- Loews Corporation, by NYSE ticker symbol
- Miscellaneous, when used as the fifth letter or behind-the-dot notation on the NASDAQ and NYSE ticker symbols
Language and literature
- 50 (number), in Roman numerals
- [ʟ], the velar lateral approximant (IPA notation)
- [l], the alveolar lateral approximant (IPA notation)
- The Cyrillic palochka (ӏ)
- The "low" or common language in a diglossia
- , a siglum for the Vetus Latina version of the Bible
- L (novel), a 1999 novel by Erlend Loe
- L (Death Note), a character from the Death Note manga series
Places
- L postcode area, for Liverpool
- L Island, former name for Scawfell Island, Queensland, Australia
- L, the military time zone code for UTC+11:00
Other uses
- Lucius (praenomen), a Roman praenomen
- Left (direction)
- L, a rating of the Brazilian advisory rating system
- L (film), a 2012 Greek film
- Lucifer (2019 Indian film), abbreviated simply as L
- L, production code for the 1965 Doctor Who serial The Rescue
- Canon L lens
- Latina Televisión, a Peruvian television channel
- Internet slang for losing