L, l

[ el ]
/ ɛl /

noun, plural L's or Ls, l's or ls.

the 12th letter of the English alphabet, a consonant.
any spoken sound represented by the letter L or l, as in let, dull, cradle.
something having the shape of an L.
a written or printed representation of the letter L or l.
a device, as a printer's type, for reproducing the letter L or l.

Definition for l (2 of 14)

l


liter; liters.

Definition for l (3 of 14)

L

[ el ]
/ ɛl /

noun, plural L's or Ls.

Definition for l (4 of 14)

L

[ el ]
/ ɛl /

noun, plural L's or Ls. Informal.

an elevated railroad.

Definition for l (5 of 14)

L


Symbol.

the 12th in order or in a series, or, if I is omitted, the 11th.
(sometimes lowercase) the Roman numeral for 50.Compare Roman numerals.
Electricity. inductance.
Biochemistry. leucine.
Economics. a broad measure of total U.S. liquid assets, issued periodically by the Federal Reserve Board.Compare M

Definition for l (6 of 14)

L

1

British. pound; pounds.

Origin of L

1
From the Latin word lībra

Definition for l (7 of 14)

L

2

Definition for l (8 of 14)

l-


Symbol, Optics, Chemistry, Biochemistry.

levorotatory; levo- (distinguished from d-).
Compare l-.

Definition for l (9 of 14)

L-


Chemistry. levo-.
U.S. Military. (in designations of light aircraft) liaison: L-15.

Definition for l (10 of 14)

l.


Definition for l (11 of 14)

l-


Symbol, Biochemistry.

(of a molecule) having a configuration resembling the levorotatory isomer of glyceraldehyde: printed as a small capital, roman character (distinguished from d-).
Compare l-.

Definition for l (12 of 14)

Origin of L.

1
From the Latin word liber

Definition for l (13 of 14)

Origin of L.

2
From the Latin word locus

Definition for l (14 of 14)

L.

3

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for l

British Dictionary definitions for l (1 of 4)

l

L

/ (ɛl) /

noun plural l's, L's or Ls

the 12th letter and ninth consonant of the modern English alphabet
a speech sound represented by this letter, usually a lateral, as in label
  1. something shaped like an L
  2. (in combination)an L-shaped room

British Dictionary definitions for l (2 of 4)

l


symbol for

litre
physics lepton number

British Dictionary definitions for l (3 of 4)

L


symbol for

abbreviation for

Luxembourg (international car registration)

Word Origin for L

(for sense 8a) Latin libra pound

British Dictionary definitions for l (4 of 4)

L.

l.


abbreviation for

lake
left
length
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for l

L


Roman letter, from Greek lambda, from Semitic lamed. The shape of the Roman letter is an early one in Greek, adopted before it was superseded in Greek by the inverted form which became the Greek lambda.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for l (1 of 3)

L


abbr.

left
limes (used with a lower case letter or a plus sign, or used with a subscript letter or plus sign as a symbol for various doses of toxin)
or l liter

Medicine definitions for l (2 of 3)

L-


pref.

Relating to the configuration of l-glyceraldehyde, a compound chosen as the basis for stereochemical nomenclature because it is the simplest carbohydrate that can form optical isomers:l-lactic acid.

Medicine definitions for l (3 of 3)

l-


pref.

To the left; levo:l-lactic acid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for l

l


Abbreviation of length, liter
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.