# lambda
## English
### Etymology

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

### Pronunciation

* (UK, US) IPA: /ˈlæm.də/
* Audio (US):(file)

### 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) Short for lambda baryon.
* (programming) Short for lambda expression.
* (programming) Short for 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

* kilolambda
* lambda abstraction
* lambda calculus
* lambdacism
* lambda expression
* lambda function
* lambda hyperon
* lambda leak
* lambda moth
* lambda particle
* lambda point
* lambda probe
* lambda term
* lambdoid
* lamda
* Tukey lambda distribution

#### Related terms

* lambdacism

#### 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: (Central, Balearic) [ˈlam.də]
* IPA: (Valencia) [ˈlam.da]

### Noun

lambda f (plural lambdes)
* lambda; the Greek letter Λ (lowercase λ)

## Czech
### 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

* Audio:(file)

### Noun

lambda f (plural lambda's, diminutive lambdaatje n)
* lambda (letter of the Greek alphabet)

#### Derived terms

* lambda-expressie
* lambdacalculus

### Further reading

* lambda on the Dutch Wikipedia.Wikipedia $^{nl}$

## Finnish
### Etymology

< Ancient Greek λάμβδα (lámbda)
Greek letter :
| Λλ | Previous: | kappa |
| Λλ | Next: | myy |

### Pronunciation

* IPA: /ˈlɑmbdɑ/, [ˈlɑ̝mbdɑ̝]
* IPA: /ˈlɑmdɑ/, [ˈlɑ̝mdɑ̝]
* Rhymes: -ɑmbdɑ
* Hyphenation: lamb‧da

### Noun

lambda
* lambda (Greek letter)

#### Declension

Possessive forms of lambda (Kotus type 9/kala, no gradation) :
first-person singular possessor
singular
plural
nominative
lambdani
lambdani
accusative
nom.
lambdani
lambdani
gen.
lambdani
genitive
lambdani
lambdojeni lambdaini $^{rare}$
partitive
lambdaani
lambdojani
inessive
lambdassani
lambdoissani
elative
lambdastani
lambdoistani
illative
lambdaani
lambdoihini
adessive
lambdallani
lambdoillani
ablative
lambdaltani
lambdoiltani
allative
lambdalleni
lambdoilleni
essive
lambdanani
lambdoinani
translative
lambdakseni
lambdoikseni
abessive
lambdattani
lambdoittani
instructive
comitative
—lambdoineni
second-person singular possessor
singular
plural
nominative
lambdasi
lambdasi
accusative
nom.
lambdasi
lambdasi
gen.
lambdasi
genitive
lambdasi
lambdojesi lambdaisi $^{rare}$
partitive
lambdaasi
lambdojasi
inessive
lambdassasi
lambdoissasi
elative
lambdastasi
lambdoistasi
illative
lambdaasi
lambdoihisi
adessive
lambdallasi
lambdoillasi
ablative
lambdaltasi
lambdoiltasi
allative
lambdallesi
lambdoillesi
essive
lambdanasi
lambdoinasi
translative
lambdaksesi
lambdoiksesi
abessive
lambdattasi
lambdoittasi
instructive
comitative
—lambdoinesi
first-person plural possessor
singular
plural
nominative
lambdamme
lambdamme
accusative
nom.
lambdamme
lambdamme
gen.
lambdamme
genitive
lambdamme
lambdojemme lambdaimme $^{rare}$
partitive
lambdaamme
lambdojamme
inessive
lambdassamme
lambdoissamme
elative
lambdastamme
lambdoistamme
illative
lambdaamme
lambdoihimme
adessive
lambdallamme
lambdoillamme
ablative
lambdaltamme
lambdoiltamme
allative
lambdallemme
lambdoillemme
essive
lambdanamme
lambdoinamme
translative
lambdaksemme
lambdoiksemme
abessive
lambdattamme
lambdoittamme
instructive
comitative
—lambdoinemme
second-person plural possessor
singular
plural
nominative
lambdanne
lambdanne
accusative
nom.
lambdanne
lambdanne
gen.
lambdanne
genitive
lambdanne
lambdojenne lambdainne $^{rare}$
partitive
lambdaanne
lambdojanne
inessive
lambdassanne
lambdoissanne
elative
lambdastanne
lambdoistanne
illative
lambdaanne
lambdoihinne
adessive
lambdallanne
lambdoillanne
ablative
lambdaltanne
lambdoiltanne
allative
lambdallenne
lambdoillenne
essive
lambdananne
lambdoinanne
translative
lambdaksenne
lambdoiksenne
abessive
lambdattanne
lambdoittanne
instructive
comitative
—lambdoinenne
third-person possessor
singular
plural
nominative
lambdansa
lambdansa
accusative
nom.
lambdansa
lambdansa
gen.
lambdansa
genitive
lambdansa
lambdojensa lambdainsa $^{rare}$
partitive
lambdaansa
lambdojaan lambdojansa
inessive
lambdassaan lambdassansa
lambdoissaan lambdoissansa
elative
lambdastaan lambdastansa
lambdoistaan lambdoistansa
illative
lambdaansa
lambdoihinsa
adessive
lambdallaan lambdallansa
lambdoillaan lambdoillansa
ablative
lambdaltaan lambdaltansa
lambdoiltaan lambdoiltansa
allative
lambdalleen lambdallensa
lambdoilleen lambdoillensa
essive
lambdanaan lambdanansa
lambdoinaan lambdoinansa
translative
lambdakseen lambdaksensa
lambdoikseen lambdoiksensa
abessive
lambdattaan lambdattansa
lambdoittaan lambdoittansa
instructive
comitative
—lambdoineen lambdoinensa :

#### Derived terms

* lambda-anturi
* lambdakalkyyli
* lambdatunnistin

## French
### Etymology

Borrowed from Ancient Greek λάμβδα (lámbda).

### Pronunciation

* IPA: /lɑ̃b.da/, /lɑ̃mb.da/, /lɑ̃m.da/
* Audio:(file)

### 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
** 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)

### 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: [ˈlɒmbdɒ]
* Hyphenation: lamb‧da
* Rhymes: -dɒ

### Noun

lambda (plural lambdák)
* lambda (Greek letter)

#### Declension
## Icelandic
### Noun

lambda n (genitive singular lambda, nominative plural lömbdu) or lambda 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: /ˈlam.bda/
* Audio:(file)
* 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

## Portuguese
### Pronunciation

* (Brazil) IPA: /ˈlɐ̃.bi.dɐ/, /ˈlɐ̃b.dɐ/
* (Brazil) IPA: /ˈlɐ̃.bi.dɐ/, /ˈlɐ̃b.dɐ/
** (Southern Brazil) IPA: /ˈlɐ̃b.da/, /ˈlɐ̃.bi.da/
* (Portugal) IPA: /ˈlɐ̃.bdɐ/ [ˈlɐ̃.bðɐ]
* Hyphenation: lamb‧da

### Noun

lambda m (plural lambdas)
* lambda (name of the Greek letter Λ, λ)

## Romanian
### Etymology

Borrowed from Greek λάμβδα (lámvda).

### Noun

lambda m (plural lambda)
* lambda

#### Declension
## Spanish
### Pronunciation

* IPA: /ˈlamda/ [ˈlãm.d̪a]
* Rhymes: -amda

### 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, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10