• synonyms


  1. Jo·hann [yoh-hahn] /ˈyoʊ hɑn/, 1571–1630, German astronomer.
  2. a crater in the second quadrant of the face of the moon having an extensive ray system: about 22 miles (35 km) in diameter.
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Related formsKep·ler·i·an [kep-leer-ee-uh n] /kɛpˈlɪər i ən/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for kepler

Historical Examples of kepler

  • But his efforts were unavailing; Kepler would not leave his own country.

    Great Astronomers

    R. S. Ball

  • Kepler, however, had the advantage of belonging to the new school.

  • Let it be remembered that it was Kepler who first imparted the proper impulse in this direction.

  • Kepler, it must be always remembered, was not an astronomical observer.

  • I stood on the high coast of Kepler Land where it trends southward.

    The Blindman's World

    Edward Bellamy

British Dictionary definitions for kepler


  1. Johannes (joˈhanəs). 1571–1630, German astronomer. As discoverer of Kepler's laws of planetary motion he is regarded as one of the founders of modern astronomy
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  1. a small crater in the NW quadrant of the moon, centre of a large bright ray system
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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

kepler in Science


  1. German astronomer and mathematician who is considered the founder of celestial mechanics. He was first to accurately describe the elliptical orbits of Earth and the planets around the Sun and demonstrated that planets move fastest when they are closest to the Sun. He also established that a planet's distance from the Sun can be calculated if its period of revolution is known.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.