co·los·sus

[kuh-los-uhs]
noun, plural co·los·si [-los-ahy] , co·los·sus·es.
1.
( initial capital letter ) the legendary bronze statue of Helios at Rhodes. Compare Seven Wonders of the World.
2.
any statue of gigantic size.
3.
anything colossal, gigantic, or very powerful.

Origin:
1350–1400; Middle English < Latin < Greek kolossós statue, image, presumably < a pre-Hellenic Mediterranean language

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
colossus (kəˈlɒsəs) [Click for IPA pronunciation guide]
 
n , pl -si, -suses
something very large, esp a statue
 
[C14: from Latin, from Greek kolossos]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Colossus is always a great word to know.
So is callithumpian. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
Etymonline
Word Origin & History

colossus
late 14c., from L. colossus, from Gk. kolossos "gigantic statue," of unknown origin, used by Herodotus of giant Egyptian statues, and used by Romans of the bronze Apollo at the entrance to the harbor of Rhodes. Fig. sense of "any thing of awesome greatness or vastness" is from 1794.
Online Etymology Dictionary, © 2010 Douglas Harper
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FOLDOC
Computing Dictionary

Colossus definition


(A huge and ancient statue on the Greek island of Rhodes).
1. The Colossus and Colossus Mark II computers used by Alan Turing at Bletchley Park, UK during the Second World War to crack the "Tunny" cipher produced by the Lorenz SZ 40 and SZ 42 machines. Colossus was a semi-fixed-program vacuum tube calculator (unlike its near-contemporary, the freely programmable Z3).
["Breaking the enemy's code", Glenn Zorpette, IEEE Spectrum, September 1987, pp. 47-51.]
2. The computer in the 1970 film, "Colossus: The Forbin Project". Forbin is the designer of a computer that will run all of America's nuclear defences. Shortly after being turned on, it detects the existence of Goliath, the Soviet counterpart, previously unknown to US Planners. Both computers insist that they be linked, whereupon the two become a new super computer and threaten the world with the immediate launch of nuclear weapons if they are detached. Colossus begins to give its plans for the management of the world under its guidance. Forbin and the other scientists form a technological resistance to Colossus which must operate underground.
The Internet Movie Database (http://www.imdb.com/title/tt0064177).
(2007-01-04)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Encyclopedia Britannica
Encyclopedia

colossus

statue that is considerably larger than life-size. They are known from ancient Egypt, Mesopotamia, India, China, and Japan. The Egyptian sphinx (c. 2550 BC) that survives at al-Jizah, for example, is 240 feet (73 m) long; and the Daibutsu (Great Buddha; AD 1252) at Kamakura, Japan, is 37 feet (11.4 m) high.

Learn more about colossus with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
What's true of the eight-hundred-pound gorilla is true of the colossus that is
  the pharmaceutical industry.
But he was a self-made and self-educated intellectual colossus whose interests
  far transcended politics.
Brown was still a colossus, but a colossus stands still, and the time required
  him to move a bit.
The talk was all of a coming confrontation with the colossus to the north, and
  its local octopus clientele.
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