lumen

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See also: lúmen

English[edit]

English Wikipedia has an article on:
Wikipedia

Etymology[edit]

Borrowed from Latin lumen (light, an opening). Use as a unit was first adopted by French physicist André Blondel in 1894.

Pronunciation[edit]

Noun[edit]

lumen (plural lumens or lumina)

  1. (physics) In the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.
  2. (anatomy) The cavity or channel within a tube or tubular organ.
  3. (botany) The cavity bounded by a plant cell wall.
  4. (medicine) The bore of a tube such as a hollow needle or catheter.

Derived terms[edit]

Related terms[edit]

Translations[edit]


Czech[edit]

Etymology[edit]

Borrowed from Latin lumen.

Noun[edit]

lumen m

  1. lumen (unit of luminous flux)

Further reading[edit]

  • lumen in Příruční slovník jazyka českého, 1935–1957
  • lumen in Slovník spisovného jazyka českého, 1960–1971, 1989

Finnish[edit]

Etymology 1[edit]

Borrowed from Latin lumen.

Alternative forms[edit]

Pronunciation[edit]

  • IPA(key): /ˈluːmen/, [ˈluːme̞n]
  • Rhymes: -uːmen
  • Hyphenation: lu‧men

Noun[edit]

lumen

  1. (physics, anatomy, botany, medicine) lumen
Declension[edit]
Inflection of lumen (Kotus type 6/paperi, no gradation)
nominative lumen lumenit
genitive lumenin lumenien
lumeneiden
lumeneitten
partitive lumenia lumeneita
lumeneja
illative lumeniin lumeneihin
singular plural
nominative lumen lumenit
accusative nom. lumen lumenit
gen. lumenin
genitive lumenin lumenien
lumeneiden
lumeneitten
partitive lumenia lumeneita
lumeneja
inessive lumenissa lumeneissa
elative lumenista lumeneista
illative lumeniin lumeneihin
adessive lumenilla lumeneilla
ablative lumenilta lumeneilta
allative lumenille lumeneille
essive lumenina lumeneina
translative lumeniksi lumeneiksi
instructive lumenein
abessive lumenitta lumeneitta
comitative lumeneineen

Etymology 2[edit]

Pronunciation[edit]

  • IPA(key): /ˈlumen/, [ˈlume̞n]
  • Hyphenation: lu‧men

Noun[edit]

lumen

  1. Genitive singular form of lumi.

Anagrams[edit]


French[edit]

Etymology[edit]

Borrowed from Latin lumen.

Pronunciation[edit]

Noun[edit]

lumen m (plural lumens)

  1. (physics) lumen (SI unit of measurement)
  2. (anatomy) lumen
  3. (botany) lumen

Latin[edit]

Etymology[edit]

From Proto-Indo-European *léwksmn̥, derived from the root *lewk- (bright).[1]
Equivalent to lūx +‎ -men.

Pronunciation[edit]

Noun[edit]

lūmen n (genitive lūminis); third declension

  1. light
  2. (poetic) the eyes
  3. (poetic) daylight
  4. (poetic) brightness
  5. (poetic) the light of life
  6. An opening through which light can penetrate such as an air-hole or a window.
  7. The opening or orifice in a water-pipe or funnel

Inflection[edit]

Third declension neuter.

Case Singular Plural
Nominative lūmen lūmina
Genitive lūminis lūminum
Dative lūminī lūminibus
Accusative lūmen lūmina
Ablative lūmine lūminibus
Vocative lūmen lūmina

Derived terms[edit]

Descendants[edit]

References[edit]

  • lumen in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • lumen in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • lumen in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • lumen in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to lose one's sight: oculos, lumina amittere
    • to deprive a person of his eyes: luminibus orbare aliquem
    • to obscure the mental vision: mentis quasi luminibus officere (vid. sect. XIII. 6) or animo caliginem offundere
    • shining lights in the literary world: clarissima litterarum lumina
    • flowers of rhetoric; embellishments of style: lumina, flores dicendi (De Or. 3. 25. 96)
    • to obstruct a person's view, shut out his light by building: luminibus alicuius obstruere, officere
  1. ^ Jacqueline Picoche, Jean-Claude Rolland, Dictionnaire étymologique du français, Paris 2009, Dictionnaires Le Robert, →ISBN

Polish[edit]

Etymology[edit]

Borrowed from Latin lumen.

Noun[edit]

lumen m inan

  1. lumen (SI-unit)

Declension[edit]


Romanian[edit]

Etymology[edit]

Borrowed from Latin lumen, French lumen. Doublet of the inherited lume.

Noun[edit]

lumen m (plural lumeni)

  1. (physics) lumen (SI unit of measurement)

Noun[edit]

lumen n (plural lumene)

  1. (anatomy) lumen

Spanish[edit]

Etymology[edit]

Borrowed from Latin lumen. Doublet of the inherited lumbre.

Noun[edit]

lumen m (plural lúmenes)

  1. lumen

Swedish[edit]

Etymology[edit]

Borrowed from Latin lumen.

Noun[edit]

lumen

  1. lumen (singular and plural)