a.l. — French Dictionary

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Language

a.l.

Word-form referencesA.L.AL al

Pronunciations

/a.ne.ly.mjɛʁ/

Noun

Symbole de l’année-lumière, unité de distance astronomique.

Examples

More examples (1)

La taille d’une galaxie se mesure en années-lumière. Avec une année-lumière (a.l. en abrégé, soit environ 10 000 milliards de kilomètres), on traverse à peine le système solaire, d’un côté du nuage de Oort à l’autre. L’étoile la plus proche du Soleil, Proxima du Centaure, se trouve à 4 a.l. La taille typique d’une galaxie comme la nôtre est de 100 000 a.l. dans son diamètre et de 100 a.l. dans son épaisseur.

Word forms

alALA.L.

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