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Definition of "axis" []

  • A straight line about which a body or geometric object rotates or may be conceived to rotate. (noun)
  • Mathematics An unlimited line, half-line, or line segment serving to orient a space or a geometric object, especially a line about which the object is symmetric. (noun)
  • Mathematics A reference line from which distances or angles are measured in a coordinate system. (noun)
  • A center line to which parts of a structure or body may be referred. (noun)
  • An imaginary line to which elements of a work of art, such as a picture, are referred for measurement or symmetry. (noun)
  • A real or imaginary line about which a body, such as an aircraft, can rotate or about which an object, form, composition, or geometrical construction is symmetrical (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • One of two or three reference lines used in coordinate geometry to locate a point in a plane or in space (noun)
  • The second cervical vertebra (noun)
  • The main central part of a plant, typically consisting of the stem and root, from which secondary branches and other parts develop (noun)
  • An alliance between a number of states to coordinate their foreign policy (noun)
  • The line of symmetry of an optical system, such as the line passing through the centre of a lens (noun)
  • An imaginary line along the crest of an anticline or the trough of a syncline (noun)
  • One of three lines passing through the centre of a crystal and used to characterize its symmetry (noun)

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Use "axis" in a sentence
  • "The Axis of the Abhorred: North Korea, Iran and the United States yahooBuzzArticleHeadline = 'The Axis of the Abhorred: North Korea, Iran and the United States'; yahooBuzzArticleSummary = 'Article: Move over axis of evil, there is a new axis in town, the \'axis of the abhorred."
  • ""Faith! if the life we live is like the globe we inhabit -- if it revolves on its own axis, _and you're that axis_ -- there's not a flaw in your philosophy; but IF -- Now perish my impetuosity!"
  • "Unfortunately the gut-brain axis is so interrelated, it is not surprising that these drugs have negative psych side effects!"