Also found in: Thesaurus, Encyclopedia, Wikipedia.


1. A comprehensive treatise on astronomy, geography, and mathematics compiled by Ptolemy about ad 150.
2. almagest Any of several medieval treatises concerned with astronomy or alchemy.

[Middle English almageste, from Old French, from Arabic al-majisti : al-, the + Greek megistē (suntaxis), greatest (composition), feminine of megistos, greatest, superlative of megas, great; see meg- in Indo-European roots.]


1. (Astronomy) a work on astronomy compiled by Ptolemy in the 2nd century ad containing a description of the geocentric system of the universe and a star catalogue
2. (Historical Terms) (sometimes not capital) any of various similar medieval treatises on astrology, astronomy, or alchemy
[C14: from Old French, from Arabic al-majisti, from al the + majisti, from Greek megistē greatest (treatise)]


(ˈæl məˌdʒɛst)

1. (italics) a Greek work on astronomy and mathematics by Ptolemy.
2. (l.c.) any of various similar treatises by medieval writers.
[1350–1400; Middle English almageste < Middle French < Arabic al the + majisṭī < Greek megístē (sýntaxis) greatest (composition)]
Mentioned in ?
References in classic literature ?
But when it came to almagest and astrolabe, the counting of figures and reckoning of epicycles, away would go her thoughts to horse and hound, and a vacant eye and listless face would warn the teacher that he had lost his hold upon his scholar.
The Philosophical Justification for the Equant in Ptolemy's Almagest, JAMES L.
A Latin version of Ptolemy's Almagest showed the words ab ireo on the line just before the constellation's first star, and it seems to have been mistaken for the name of that star.
A: Owning a share in Almagest, which Sheikh Fahad Al Thani rode to victory in the 2016 Newmarket Town Plate, believed to be the oldest horse race in the world.
But then there was Giovanni Battista Riccioli, who, nineteen years after the appearance of Galileo's Dialogue on the Two Chief World Systems, published his massive New Almagest [1651 ], in which he weighed both scientific ("philosophical") and religious arguments for and against Copernican heliocentrism.
gr/publications/almagest/issues/7-1) Almagest , the Antikythera Mechanism, often called the world's first analog computer, was, in addition to pinpoint the positions of sun, stars and the moon, used to predict solar and lunar eclipses - events ancient Greeks believed could impact human affairs.
brought Almagest purification and this is just one We took our pleasures
Layline is a pretty reliable yardstick on the all-weather and gets the nod in the Hickstead Show Ground Handicap at Lingfield, while Almagest looks a capital investment in the Edward Brain Plant Hire Novices' Hurdle at Stratford.
The scientific case reached its apogee, Graney argues, in the 1651 New Almagest of the Italian Jesuit astronomer Giovanni Battista Riccioli, who used detailed telescopic observations of stars to construct a powerful scientific argument against Copernicus.
after destroying Mutual Regard by 14 lengths, with one of this afternoon's rivals almagest a further seven lengths adrift in third, statutory was switched to Godolphin and aimed at some of the bigger staying prizes.
Edgar Laird points out that this new learning was based not just on the writings of Aristotle, but on the Almagest of Ptolemy.
1114 Gherardo of Cremona born; translated the Almagest and the Toletan Tables into Latin.