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[lam-duh] /ˈlæm də/
the 11th letter of the Greek alphabet (Λ, λ).
the consonant sound represented by this letter.
Origin of lambda
< Greek lá(m)bda < Semitic; see lamed Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for lambda
Contemporary Examples
Historical Examples
  • The second lambda is inserted in order to avoid the ill-omened sound of destruction.

    Cratylus Plato
  • Pions and muons, plus and minus; the lambda and the antilambda.

    A Feast of Demons William Morrison
  • Giving the lambda a fillip with my finger, I turned it upside down.

    Devil Stories Various
  • Another annular nebula is that situated to the south-west of lambda Scorpii.

    Aether and Gravitation

    William George Hooper
  • They lambda Chied us till they became sick of it, and all our attempts to get even proved failures.

    Frank Merriwell at Yale Burt L. Standish
British Dictionary definitions for lambda


the 11th letter of the Greek alphabet (Λ, λ), a consonant transliterated as l
Word Origin
C14: from Greek, from Semitic; related to lamed
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
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Word Origin and History for lambda

Greek letter name, from a Semitic source akin to Hebrew lamedh.

Online Etymology Dictionary, © 2010 Douglas Harper
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lambda in Medicine

lambda lamb·da (lām'də)

  1. Symbol λ The 11th letter of the Greek alphabet.

  2. The craniometric point at the junction of the sagittal and lambdoid sutures.

Of, relating to, or characterizing a polypeptide chain that is one of two types of light chains present in immunoglobins.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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