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[gal-uh-ley-oh, -lee-oh; for 1 also Italian gah-lee-le-aw] /ˌgæl əˈleɪ oʊ, -ˈli oʊ; for 1 also Italian ˌgɑ liˈlɛ ɔ/
(Galileo Galilei) 1564–1642, Italian physicist and astronomer.
Aerospace. a U.S. space probe designed to take photographs and obtain other scientific information while orbiting the planet Jupiter. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for Galileo
Contemporary Examples
Historical Examples
  • Galileo had now made such progress that he was able to continue his geometrical studies by himself.

    Great Astronomers R. S. Ball
  • The Villa of Galileo, the nameless composition with stone pines, 43.

  • A third form of telescope is that invented by the great Italian astronomer, Galileo, in 1609.

    How it Works Archibald Williams
  • This was the great mission of the telescope in Galileo's hands.

  • The three cadets turned quickly, their eyes sweeping the valley for the first sight of the shining Tower of Galileo.

  • Galileo, the cat, came yowlin' around, and Nate kicked him under the sofy.

    The Depot Master Joseph C. Lincoln
British Dictionary definitions for Galileo


full name Galileo Galilei. 1564–1642, Italian mathematician, astronomer, and physicist. He discovered the isochronism of the pendulum and demonstrated that falling bodies of different weights descend at the same rate. He perfected the refracting telescope, which led to his discovery of Jupiter's satellites, sunspots, and craters on the Earth's moon. He was forced by the Inquisition to recant his support of the Copernican system


a US spacecraft, launched 1989, that entered orbit around Jupiter in late 1995 to study the planet and its major satellites; burned up in the planet's atmosphere in 2003
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Galileo in Culture
Galileo [(gal-uh-lee-oh, gal-uh-lay-oh)]

An Italian scientist of the late sixteenth and early seventeenth centuries; his full name was Galileo Galilei. Galileo proved that objects with different masses fall at the same velocity. One of the first persons to use a telescope to examine objects in the sky, he saw the moons of Jupiter, the mountains on the moon, and sunspots.

Note: Authorities of the Roman Catholic Church forced Galileo to renounce his belief in the model of the solar system proposed by Nicolaus Copernicus. Galileo had to assert that the Earth stands still, and the sun revolves around it. A famous legend holds that Galileo, after making this public declaration about a motionless Earth, muttered, “Nevertheless, it does move.”
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Galileo in Technology

["Galileo: A Strongly Typed Interactive Conceptual Language", A. Albano et al, ACM Trans Database Sys 10(2):230-260 (June 1985)].

The Free On-line Dictionary of Computing, © Denis Howe 2010
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