luminal

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English

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Etymology 1

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Latin lumina (lights) +‎ -al.

Adjective

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luminal (not comparable)

  1. (biology) of or pertaining to the lumen
  2. (physics) of or pertaining to the nature of light
  3. (physics) light-speed; having the speed of light (usually in the void)
Synonyms
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Antonyms
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Derived terms
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Etymology 2

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From the brand name.

Noun

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luminal (uncountable)

  1. (medicine) The drug phenobarbital.
Synonyms
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Romanian

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Etymology

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Borrowed from German Luminal or French luminal.

Noun

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luminal n (uncountable)

  1. luminal

Declension

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Spanish

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Adjective

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luminal m or f (masculine and feminine plural luminales)

  1. luminal

Noun

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luminal m (plural luminales)

  1. luminal