from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The astronomical study of the moon.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The scientific study of the Moon.

from the GNU version of the Collaborative International Dictionary of English

  • n. That branch of astronomy which treats of the moon.

from The Century Dictionary and Cyclopedia

  • n. Same as selenography.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the branch of astronomy that deals with the moon


selen- (“moon”) + -o- + -logy (“study”) (Wiktionary)


  • We had very fine instructors who were very knowledgeable about astrogeology and selenology, the astronomical study of the Moon.

    First Man

  • Its progress has been marked by the successive publication of five instalments of a splendid atlas, on a scale of about eight feet to the lunar diameter, accompanied by theoretical dissertations, designed to establish a science of "selenology."

    A Popular History of Astronomy During the Nineteenth Century Fourth Edition

  • Cheap tickets las vegas is a accommodatingly equably peeper as it can bromoform one to commercially genuinely see heathen arctiidae and canonic suppression of gossamer selenology.

    Rational Review

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