different between lumen vs cavity

English

Etymology

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

Pronunciation

• (Received Pronunciation) IPA^(key): /?lu?m?n/
• (General American) enPR: lo?o?m?n, IPA^(key): /?lum?n/
• Rhymes: -u?m?n
• Hyphenation: lu?men

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.

Derived terms

• lumenal
• lumenless
• lumen second

Related terms

• candela
• luminal
• lux

Translations

Czech

Pronunciation

• IPA^(key): [?lum?n]
• Hyphenation: lu?men

Etymology 1

Borrowed from Latin lumen.

Noun

lumen m inan

1. lumen (unit of luminous flux)

Declension

Etymology 2

Noun

lumen m anim

1. capable talented person

Declension

Further reading

• lumen in P?íru?ní slovník jazyka ?eského, 1935–1957
• lumen in Slovník spisovného jazyka ?eského, 1960–1971, 1989

Finnish

Etymology 1

Borrowed from Latin lumen.

Pronunciation

• IPA^(key): /?lu(?)men/, [?lu(?)me?n]
• Rhymes: -umen
• Syllabification: lu?men

Noun

lumen

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

Declension

Alternative forms

• luumen

Etymology 2

Pronunciation

• IPA^(key): /?lumen/, [?lume?n]
• Rhymes: -umen
• Syllabification: lu?men

Noun

lumen

1. genitive singular of lumi

Anagrams

• lemun, melun

French

Etymology

Borrowed from Latin lumen.

Pronunciation

• IPA^(key): /ly.m?n/

Noun

lumen m (plural lumens)

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

Latin

Etymology

From Proto-Indo-European *léwksmn?, derived from the root *lewk- (“bright”).
Equivalent to l?x +? -men.

Pronunciation

• (Classical) IPA^(key): /?lu?.men/, [???u?m?n]
• (Ecclesiastical) IPA^(key): /?lu.men/, [?lu?m?n]

Noun

l?men n (genitive l?minis); third declension

1. light, source of 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
8. (figuratively) a luminary, star, light (a most distinguished person)

Declension

Third-declension noun (neuter, imparisyllabic non-i-stem).

Derived terms

Descendants

References

• 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.

Polish

Etymology

Borrowed from Latin lumen.

Noun

lumen m inan

1. lumen (SI-unit)
2. (archaic) display, explanation

Declension

Romanian

Etymology

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

Noun

lumen m (plural lumeni)

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

Noun

lumen n (plural lumene)

1. (anatomy) lumen

Spanish

Etymology

Borrowed from Latin lumen. Doublet of the inherited lumbre.

Noun

lumen m (plural lúmenes)

1. lumen

Swedish

Etymology

Borrowed from Latin lumen.

Noun

lumen

1. lumen (singular and plural)

Anagrams

• mulen, mulne

English

Etymology

From Middle English cavity, from Middle French cavité, from Late Latin cavitas, from Latin cavus (“hollow”).

Pronunciation

• IPA^(key): /?kæv?ti/
• • (US) IPA^(key): [?k?æv??i]

Noun

cavity (plural cavities)

1. A hole or hollow depression.
2. A hollow area within the body (such as the sinuses).
3. (dentistry) A small or large hole in a tooth caused by caries; often also a soft area adjacent to the hole also affected by caries.

Synonyms

• See also Thesaurus:hole
• (dentistry): caries

Derived terms

Related terms

• cave
• concave
• excavate
• excavation
• excavator

Translations

Further reading

• cavity in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• cavity in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• cavity at OneLook Dictionary Search