Algol Definition

ălgŏl, -gôl
A double, eclipsing variable star in the constellation Perseus, almost as bright as Polaris.
American Heritage
A computer language employing algebraic symbols, used internationally for scientific computations.
Webster's New World
A binary, variable star in the constellation Perseus: magnitude 2.09: the fainter star regularly eclipses its brighter companion.
Webster's New World

Origin of Algol

  • Arabic (ra’s) al-ġūl (head) of the ghoul al- the ġūl ghoul (so called because the star was considered to represent the head of Medusa held by Perseus) ġwl in Semitic roots

    From American Heritage Dictionary of the English Language, 5th Edition

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