lambda
التعريفات والمعاني
== English ==
=== Etymology ===
From Ancient Greek λάμβδα (lámbda). Doublet of lamed.
=== Pronunciation ===
(UK, US) IPA(key): /ˈlæm.də/
=== Noun ===
lambda (plural lambdas)
The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.
(physics, mathematics) Unit representation of wavelength.(Can we add an example for this sense?)
(physics) The cosmological constant.
(physics) Ellipsis of lambda baryon.
(programming) Ellipsis of lambda expression.
(programming) Ellipsis of lambda function.
(anatomy) The junction of the lambdoid and sagittal sutures of the cranium.
(finance) The percentage change in an option value divided by the percentage change in the underlying asset's price.
==== Synonyms ====
(measure of derivative price sensitivity): elasticity, omega
==== Hypernyms ====
(measure of derivative price sensitivity): Greeks (includes list of coordinate terms)
==== Derived terms ====
==== Related terms ====
lambdacism
==== Translations ====
==== See also ====
(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
== Catalan ==
=== Pronunciation ===
IPA(key): (Northern, Balearic, Central) [ˈlam.də]
IPA(key): (Valencia, Northwestern) [ˈlam.da]
=== Noun ===
lambda f (plural lambdes)
lambda; the Greek letter Λ (lowercase λ)
== Czech ==
=== Pronunciation ===
IPA(key): [ˈlambda]
=== Noun ===
lambda n or f
lambda (Greek letter)
==== Declension ====
when feminine:
Indeclinable when neuter.
== Dutch ==
=== Etymology ===
From Ancient Greek λάμβδα (lámbda). Doublet of lamed.
=== Pronunciation ===
=== Noun ===
lambda f (plural lambda's, diminutive lambdaatje n)
lambda (letter of the Greek alphabet)
==== Derived terms ====
=== Further reading ===
lambda on the Dutch Wikipedia.Wikipedia nl
== Finnish ==
=== Etymology ===
< Ancient Greek λάμβδα (lámbda)
=== Pronunciation ===
IPA(key): /ˈlɑmbdɑ/, [ˈlɑ̝mbdɑ̝]
IPA(key): /ˈlɑmdɑ/, [ˈlɑ̝mdɑ̝]
Rhymes: -ɑmbdɑ
Syllabification(key): lamb‧da
Hyphenation(key): lamb‧da
=== Noun ===
lambda
lambda (Greek letter)
==== Declension ====
==== Derived terms ====
== French ==
=== Etymology ===
Borrowed from Ancient Greek λάμβδα (lámbda).
=== Pronunciation ===
IPA(key): /lɑ̃b.da/, /lɑ̃mb.da/, /lɑ̃m.da/
=== Noun ===
lambda m (plural lambda or lambdas)
lambda (Greek letter)
(finance) price elasticity of an option in relation to that of its holder
(ethology) the most ordinary member of a group
a former unit of capacity or volume equivalent to a microliter, whose symbol is λ
(acoustics) a level of intensity equivalent to forty decibels above the threshold for hearing a sound with a frequency of one kilohertz
Silver Y (moth)
Synonym: noctuelle gamma
==== Usage notes ====
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.
=== Adjective ===
lambda (plural lambdas or lambda)
common, usual (especially of a person)
=== Further reading ===
“lambda”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012
== Hungarian ==
=== Etymology ===
From Ancient Greek λάμβδα (lámbda).
=== Pronunciation ===
IPA(key): [ˈlɒmbdɒ]
Hyphenation: lamb‧da
Rhymes: -dɒ
=== Noun ===
lambda (plural lambdák)
lambda (Greek letter)
==== Declension ====
== Icelandic ==
=== Noun ===
lambda n (genitive singular lambda, nominative plural lömbdu) orlambda f (genitive singular lömbdu, nominative plural lömbdur)
lambda (Greek letter)
==== Declension ====
== Italian ==
=== Noun ===
lambda m or f (invariable)
lambda (Greek letter)
=== Noun ===
lambda m (invariable)
(anatomy) lambda
== Polish ==
=== Etymology ===
Learned borrowing from Ancient Greek λάμβδα (lámbda), from Phoenician 𐤋 (l /lāmed/).
=== Pronunciation ===
IPA(key): /ˈlam.bda/
Rhymes: -ambda
Syllabification: lam‧bda
=== Noun ===
lambda f
lambda (Greek letter Λ, λ)
(physics) lambda baryon
==== Declension ====
=== Further reading ===
“lambda”, in Polish dictionaries at PWN[1] (in Polish)
== Portuguese ==
=== Pronunciation ===
Hyphenation: lamb‧da
=== Noun ===
lambda m (plural lambdas)
lambda (name of the Greek letter Λ, λ)
=== Further reading ===
“lambda”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
== Romanian ==
=== Etymology ===
Borrowed from Greek λάμβδα (lámvda).
=== Noun ===
lambda m (plural lambda)
lambda
==== Declension ====
== Spanish ==
=== Pronunciation ===
IPA(key): /ˈlambda/ [ˈlãmb.ð̞a]
Rhymes: -ambda
Syllabification: lamb‧da
=== Noun ===
lambda f (plural lambdas)
lambda; the Greek letter Λ, λ
=== Further reading ===
“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