L, or l, is the twelfth letter of the English alphabet.
L or l may also refer to: Left (direction) 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, a unit of volume l, abbreviation for liquid L, the Roman numeral representing the number 50 Loser (hand gesture)
Finance 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 ₤ 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
Science and technology
Low-pressure area, in meteorology Canon L lens, in photography L or , notation for a Lagrangian (disambiguation), in math and physics L band (disambiguation), in telecommunications
Mathematics and computing , constructible universe, a particular class of sets which can be described entirely in terms of simpler sets L-function, meromorphic function on the complex plane , 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 L, symbol for basic provability logic L (complexity), a complexity class in computational complexity theory L-notation, used for running times of subexponential algorithms Android L, code name for Android Lollipop
Physics and astronomy L, Langmuir (unit), a unit of exposure to a surface, used in ultra-high vacuum surface physics ℓ, azimuthal quantum number Angular momentum Inductance, the ratio of the magnetic flux to the current in an electrical circuit Latent heat Mean free path, the average distance traveled by a moving particle between successive collisions Luminosity Class L, a stellar classification Galactic longitude (l), in the galactic coordinate system
Chemistry and life sciences Avogadro constant, in some German scientific literature Leucine, an α-amino acid l-, prefix indicating a levorotary compound L-, prefix indicating of absolute configuration L-amino acid Lewisite, a blister agent 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
Arts and media
L – A Mathemagical Adventure, a 1984 computer game L (film), a 2012 Greek film L, production code for the 1965 Doctor Who serial The Rescue Big L (disambiguation), a musician, song, or radio station L, a rating of the Brazilian advisory rating system L (Death Note), a character from the Death Note manga and anime series
Language and literature L (novel), a 1999 novel by Erlend Loe [ʟ], the velar lateral approximant (IPA notation) [l], the alveolar lateral approximant (IPA notation) The Cyrillic palochka (Ӏ) Ḷ, a letter derived from L with a diacritical dot below The "low" or common language in a diglossia , a siglum for the Vetus Latina version of the Bible 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
Music
L (French singer), French singer-songwriter L (entertainer), 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-plate, a plate for learning drivers under instruction Nissan L engine L, the low gear of an automatic transmission L class (disambiguation), types of trains, ships, and other things
Trains and railroads L (Los Angeles Railway) Chicago "L", a rapid transit system in Chicago L (New York City Subway service) L Line (Los Angeles Metro) L (SEPTA Metro) Transilien Line L, a line of the Paris transport network The official West Japan Railway Company service symbol for: Maizuru Line Uno Line L Taraval (San Francisco Muni) LB&SCR L class, a British tank locomotive on the London, Brighton, and South Coast Railway
Places L, the vehicle registration prefix of Surabaya, Indonesia 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 L. Inc., California-based corporation that makes organic personal care products Liberals (Sweden), a political party in Sweden
See also
El (disambiguation) Lambda (disambiguation)