Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A star in the constellation Eridanus that is one of the brightest stars in the sky and is 114 light years from Earth.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From Arabic ’aḫīr an-nahr, the end of the river (referring to the star's position in the constellation Eridanus) : ’aḫīr, last, end; see ℵḫr in Semitic roots + al-, the + nahr, river; see nhr in Semitic roots.]

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