Definition of Betelgeuse in English:

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Betelgeuse

Pronunciation: /ˈbiːt(ə)lˌdʒəːz/
(also Betelgeux) Astronomy
The tenth-brightest star in the sky, in the constellation Orion. It is a red supergiant, and variations in its brightness are associated with pulsations in its outer envelope.

Origin

French, alteration of Arabic yad al-jauzā 'hand of the giant' (the giant being Orion).

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