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A binary, eclipsing variable star in the constellation Perseus, almost as bright as Polaris.
[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); see ġwl in Semitic roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Astronomy) the second brightest star in Perseus, the first known eclipsing binary. Visual magnitude: 2.2–3.5; period: 68.8 hours; spectral type (brighter component): B8V
[C14: from Arabic al ghūl the ghoul]
(Computer Science) a computer programming language designed for mathematical and scientific purposes; a high-level language
[C20 alg(orithmic) o(riented) l(anguage)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Al•gol(ˈæl gɒl, -gɔl)
a second-magnitude star in the constellation Perseus: the first known and most famous eclipsing binary star.
[1350–1400; Middle English < Arabic, =al the + ghūl ghoul]
ALGOL(ˈæl gɒl, -gɔl)
a computer language in which information is expressed in algebraic notation and according to the rules of Boolean algebra.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||Algol - the second brightest star in Perseus; the first known eclipsing binary|
Perseus - a conspicuous constellation in the northern hemisphere; between Auriga and Cassiopeia and crossed by the Milky Way
|2.||ALGOL - (from a combination of ALGOrithmic and Language); a programming language used to express computer programs as algorithms|
algebraic language - an algorithmic language having statements that resemble algebraic expressions
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