lambda

From Wiktionary, the free dictionary

Ancient Greek alphabet

From Ancient Greek λάμβδα (lámbda). Doublet of lamed .

• (UK , US ) IPA ^(key): /ˈlæm.də/
• Audio (US ): (file)

lambda (plural lambdas )

1. The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.
2. (physics , mathematics ) Unit representation of wavelength.(Can we add an example for this sense?)
3. (physics ) The cosmological constant.
4. (physics ) Ellipsis of lambda baryon .
5. (programming ) Ellipsis of lambda expression .
6. (programming ) Ellipsis of lambda function .
7. (anatomy ) The junction of the lambdoid and sagittal sutures of the cranium.
8. (finance ) The percentage change in an option value divided by the percentage change in the underlying asset's price.

• (measure of derivative price sensitivity): elasticity , omega

• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

• lambdacism

• (Greek-script letter names) alpha , beta , gamma , delta , epsilon , zeta , eta , theta , iota , kappa , lambda, mu , nu , xi , omicron , pi , rho , sigma , tau , upsilon , phi , chi , psi , omega

• IPA ^(key): (Northern , Balearic , Central ) [ˈlam.də]
• IPA ^(key): (Valencia , Northwestern ) [ˈlam.da]

lambda f (plural lambdes )

1. lambda ; the Greek letter Λ (lowercase λ)

• IPA ^(key): [ˈlambda]

lambda n or f

1. lambda (Greek letter)

when feminine:

Indeclinable when neuter.

From Ancient Greek λάμβδα (lámbda). Doublet of lamed .

• Audio: (file)

lambda f (plural lambda's , diminutive lambdaatje  n)

1. lambda (letter of the Greek alphabet)

• lambda on the Dutch Wikipedia.Wikipedia ^nl

< Ancient Greek λάμβδα (lámbda)

Greek letter

Λλ	Previous:	kappa
	Next:	myy

• IPA ^(key): /ˈlɑmbdɑ/, [ˈlɑ̝mbdɑ̝]
• IPA ^(key): /ˈlɑmdɑ/, [ˈlɑ̝mdɑ̝]
• Rhymes: -ɑmbdɑ
• Syllabification^(key): lamb‧da
• Hyphenation^(key): lamb‧da

lambda

1. lambda (Greek letter)

Borrowed from Ancient Greek λάμβδα (lámbda).

• IPA ^(key): /lɑ̃b.da/, /lɑ̃mb.da/, /lɑ̃m.da/
• Audio: (file)
• Audio (Canada (Shawinigan)): (file)
• Audio (France (Vosges)): (file)
• Audio (France (Lyon)): (file)

lambda m (plural lambda or lambdas )

1. lambda (Greek letter)
2. (finance ) price elasticity of an option in relation to that of its holder
3. (ethology ) the most ordinary member of a group
4. a former unit of capacity or volume equivalent to a microliter, whose symbol is λ
5. (acoustics ) a level of intensity equivalent to forty decibels above the threshold for hearing a sound with a frequency of one kilohertz
6. Silver Y (moth)

   Synonym: noctuelle gamma

• Traditionally and most commonly, the plural is spelled without an s. However, according to the 1990 spelling reform, the plural should be spelled with an s.

lambda (plural lambdas or lambda)

1. common, usual (especially of a person)
   • 2006, Virginie Despentes, "King Kong Girl", in King Kong Théorie [King Kong Theory ], Éditions Grasset, →ISBN, page 127:

     Mais c'est rare d'être Bukowski, la plupart du temps, c'est juste des tocards lambda.

     (please add an English translation of this quotation)

   • 2015 January, Virginie Despentes, Vernon Subutex, volume 1, Éditions Grasset, →ISBN:

     Branché sur une pulsation souterraine, que l'humain lambda ne perçoit pas.

     (please add an English translation of this quotation)

   • 2024 April 12, L. Ro., quoting Marc Morelli, "Marc Morelli, le chirurgien des machines à coudre", in La Provence, page 7:

     Je dirais qu'aujourd'hui 20 à 30 % de ma clientèle confectionnent des robes d'Arlésienne, mais finalement, le plus gros de mes ventes est réalisé par des personnes lambda pour de la couture libre, des vêtements pour enfants par exemple.

     (please add an English translation of this quotation)

   • 2025 June, Benoît Bréville, "Tous influenceurs !", in Le Monde diplomatique , →ISSN, page 21:

     « Il faut pas être un mec lambda », explique un streamer jeux vidéo, qui a décidé de miser sur une caractéristique physique [...].

     (please add an English translation of this quotation)

• "lambda", in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012

From Ancient Greek λάμβδα (lámbda).

• IPA ^(key): [ˈlɒmbdɒ]
• Hyphenation: lamb‧da
• Rhymes: -dɒ

lambda (plural lambdák )

1. lambda (Greek letter)

• IPA ^(key): [ˈlamta]

lambda n (genitive singular lambda, nominative plural lömbdu ) or
lambda f (genitive singular lömbdu , nominative plural lömbdur )

1. lambda (Greek letter)

lambda m or f (invariable )

1. lambda (Greek letter)

lambda m (invariable )

1. (anatomy ) lambda

Learned borrowing from Ancient Greek λάμβδα (lámbda), from Phoenician 𐤋 (l‬ /⁠lāmed⁠/).

• IPA ^(key): /ˈlam.bda/
• Audio: (file)
• Rhymes: -ambda
• Syllabification: lam‧bda

lambda f

1. lambda (Greek letter Λ, λ)
2. (physics ) lambda baryon

• "lambda", in Polish dictionaries at PWN‎^[1] (in Polish)

• Hyphenation: lamb‧da

lambda m (plural lambdas )

1. lambda (name of the Greek letter Λ, λ)

• "lambda", in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Borrowed from Greek λάμβδα (lámvda).

lambda m (plural lambda)

1. lambda

• IPA ^(key): /ˈlambda/ [ˈlãmb.ð̞a]
• Rhymes: -ambda
• Syllabification: lamb‧da

lambda f (plural lambdas )

1. lambda ; the Greek letter Λ, λ

• "lambda", in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025

Retrieved from "https://en.wiktionary.org/w/index.php?title=lambda&oldid=91479095"

Categories:

• English terms borrowed from Ancient Greek
• English terms derived from Ancient Greek
• English doublets
• English 2-syllable words
• English terms with IPA pronunciation
• English terms with audio pronunciation
• English lemmas
• English nouns
• English countable nouns
• en:Physics
• en:Mathematics
• English ellipses
• en:Programming
• en:Anatomy
• en:Finance
• en:Greek letter names
• Catalan terms with IPA pronunciation
• Catalan lemmas
• Catalan nouns
• Catalan countable nouns
• Catalan feminine nouns
• ca:Greek letter names
• Czech terms with IPA pronunciation
• Czech lemmas
• Czech nouns
• Czech neuter nouns
• Czech feminine nouns
• Czech nouns with multiple genders
• Czech hard feminine nouns
• Czech indeclinable nouns
• cs:Greek letter names
• Dutch terms borrowed from Ancient Greek
• Dutch terms derived from Ancient Greek
• Dutch doublets
• Dutch terms with audio pronunciation
• Dutch lemmas
• Dutch nouns
• Dutch nouns with plural in -s
• Dutch feminine nouns
• nl:Greek letter names
• Finnish terms borrowed from Ancient Greek
• Finnish terms derived from Ancient Greek
• Finnish 2-syllable words
• Finnish terms with IPA pronunciation
• Rhymes:Finnish/ɑmbdɑ
• Rhymes:Finnish/ɑmbdɑ/2 syllables
• Finnish lemmas
• Finnish nouns
• Finnish kala-type nominals
• fi:Greek letter names
• French terms borrowed from Ancient Greek
• French terms derived from Ancient Greek
• French 2-syllable words
• French terms with IPA pronunciation
• French terms with audio pronunciation
• French lemmas
• French nouns
• French countable nouns
• French nouns with multiple plurals
• French masculine nouns
• fr:Finance
• fr:Ethology
• fr:Acoustics
• French adjectives
• French terms with quotations
• fr:Greek letter names
• Hungarian terms derived from Ancient Greek
• Hungarian terms with IPA pronunciation
• Rhymes:Hungarian/dɒ
• Rhymes:Hungarian/dɒ/2 syllables
• Hungarian lemmas
• Hungarian nouns
• hu:Greek letter names
• Icelandic 2-syllable words
• Icelandic terms with IPA pronunciation
• Icelandic lemmas
• Icelandic nouns
• Icelandic nouns with multiple genders
• Icelandic neuter nouns
• Icelandic feminine nouns
• is:Greek letter names
• Italian lemmas
• Italian nouns
• Italian countable nouns
• Italian indeclinable nouns
• Italian nouns with irregular gender
• Italian masculine nouns
• Italian feminine nouns
• Italian nouns with multiple genders
• it:Anatomy
• it:Greek letter names
• Polish terms borrowed from Ancient Greek
• Polish learned borrowings from Ancient Greek
• Polish terms derived from Ancient Greek
• Polish terms derived from Phoenician
• Polish 2-syllable words
• Polish terms with IPA pronunciation
• Polish terms with audio pronunciation
• Rhymes:Polish/ambda
• Rhymes:Polish/ambda/2 syllables
• Polish lemmas
• Polish nouns
• Polish feminine nouns
• pl:Physics
• pl:Baryons
• pl:Greek letter names
• Portuguese 3-syllable words
• Portuguese 2-syllable words
• Portuguese terms with IPA pronunciation
• Portuguese lemmas
• Portuguese nouns
• Portuguese countable nouns
• Portuguese nouns with irregular gender
• Portuguese masculine nouns
• Romanian terms borrowed from Greek
• Romanian terms derived from Greek
• Romanian lemmas
• Romanian nouns
• Romanian countable nouns
• Romanian masculine nouns
• Spanish 2-syllable words
• Spanish terms with IPA pronunciation
• Rhymes:Spanish/ambda
• Rhymes:Spanish/ambda/2 syllables
• Spanish lemmas
• Spanish nouns
• Spanish countable nouns
• Spanish feminine nouns
• es:Greek letter names

Hidden categories:

• Pages with entries
• Pages with 13 entries
• Requests for example sentences in English
• Entries with translation boxes
• Terms with Arabic translations
• Terms with Armenian translations
• Terms with Asturian translations
• Terms with Catalan translations
• Terms with Mandarin translations
• Terms with Czech translations
• Terms with Dutch translations
• Terms with Esperanto translations
• Terms with Finnish translations
• Terms with French translations
• Terms with Georgian translations
• Terms with German translations
• Terms with Greek translations
• Terms with Ancient Greek translations
• Terms with Hebrew translations
• Terms with Hungarian translations
• Terms with Interlingua translations
• Terms with Italian translations
• Terms with Japanese translations
• Terms with Korean translations
• Terms with Macedonian translations
• Terms with Malay translations
• Terms with Māori translations
• Terms with Marathi translations
• Terms with Persian translations
• Terms with Polish translations
• Terms with Portuguese translations
• Terms with Russian translations
• Terms with Spanish translations
• Terms with Swedish translations
• Terms with Tagalog translations
• Terms with Telugu translations
• Terms with Thai translations
• Dutch nouns with red links in their headword lines
• French entries referencing missing etymons
• Pages with etymon
• French entries with etymon
• Pages using etymon with no ID
• Requests for attention concerning French
• Requests for translations of French quotations
• Hungarian links with redundant wikilinks
• Hungarian links with redundant alt parameters
• Polish links with redundant wikilinks
• Polish links with redundant alt parameters
• Polish links with manual fragments