lumen

English

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Noun

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.

Translations

SI-unit for luminous flux

• Chinese:

  Mandarin: simpl. 流明

• Finnish: luumen (fi)
• French: lumen (fr)
• Greek: κηρίο (el) n (kirío)

• Japanese: ルーメン (rūmen)
• Korean: 루멘 (rumen)
• Polish: lumen (pl) m
• Russian: люмен (ru) m (ljúmen)
• Swedish: lumen (sv)

anatomy: cavity within tubular organ

• Chinese:

  Mandarin: simpl. 内腔

• Finnish: lumen (fi), ontelo (fi)

botany: cavity bounded by cell wall

• Finnish: lumen (fi), ontelo (fi)

• Russian: полость (ru) f (pólost')

medicine: bore of a tube

• Finnish: lumen (fi)

Derived terms

• lumenal
• luminal

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Finnish

Etymology 1

Alternative forms

• luumen

Pronunciation

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

Noun

lumen

1. (physics, anatomy, botany, medicine) lumen

Declension

Declension of lumen (Kotus type 6/paperi)

		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

Pronunciation

• IPA^(key): [ˈlume̞n]
• Hyphenation: lu‧men

Noun

lumen

1. Genitive singular form of lumi.

Anagrams

• lemun, melun

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Latin

Pronunciation

• (Classical) IPA^(key): /ˈluː.men/

Etymology

From Proto-Indo-European *lewk-s-men, from *lewk-. Cognate to Latin lūx.

Noun

lūmen n (genitive lūminis); third declension

1. light
2. (poetic) the eyes
3. (poetic) daylight
4. (poetic) brightness
5. (poetic) the light of life

Inflection

Third declension neuter.

Number	Singular	Plural
nominative	lūmen	lūmina
genitive	lūminis	lūminum
dative	lūminī	lūminibus
accusative	lūmen	lūmina
ablative	lūmine	lūminibus
vocative	lūmen	lūmina

Derived terms

• lūmināre
• lūminātor
• lūminātus

• lūminō
• lūminōsus

Descendants

• Aromanian: lume, lumi, lunjinã
• Asturian: llume
• Catalan: llum
• French: lumière
• Galician: lume
• Istriot: loûme
• Italian: lume

• Istro-Romanian: lume
• Occitan: lum
• Portuguese: lume
• Romanian: lume, lumină
• Russian: люмен (ljumen)
• Sicilian: lumi
• Spanish: lumbre

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Polish

Noun

lumen m

1. lumen (SI-unit)

Declension

declension of lumen

	singular	plural
nominative	lumen	lumeny
genitive	lumena	lumenów
dative	lumenowi	lumenom
accusative	lumen	lumeny
instrumental	lumenem	lumenami
locative	lumenie	lumenach
vocative	lumenie	lumeny

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Swedish

Noun

lumen

1. lumen (singular and plural)