Definitions of axis

  1. the main stem or central part about which plant organs or plant parts such as branches are arranged
  2. the center around which something rotates
  3. the 2nd cervical vertebra; serves as a pivot for turning the head
  4. a straight line through a body or figure that satisfies certain conditions
  5. a group of countries in special alliance
  6. in World War II the alliance of Germany and Italy in 1936 which later included Japan and other nations; " the Axis opposed the Allies in World War II"
  7. The spotted deer ( Cervus axis or Axis maculata) of India, where it is called hog deer and parrah ( Moorish name).
  8. A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged.
  9. A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center.
  10. The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body.
  11. The second vertebra of the neck, or vertebra dentata.
  12. Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon.
  13. One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded.
  14. The primary or secondary central line of any design.
  15. The spotted deer ( Cervus axis or maculata) of India, where it is called hog deer and parrah ( Moorish name).
  16. The motionless straight line, real or imaginary, passing through a body, upon which such a body revolves, or is supposed to revolve; as, the earth turns on its axis.
  17. 1. A straight line passing through a spherical body between its two poles, and about which the body may revolve. 2. The central line of the body or any of its parts. 3. The spinal column. 4. The central nervous system. 5. The second cervical vertebra, epistropheus. 6. The odontoid process of the epistropheus. 7. An artery which divides, immediately upon its origin, into a number of branches.
  18. The second vertebra.
  19. The axle, or the line, real or imaginary, on which a body revolves.
  20. The line on which a body revolves.
  21. A line on which something rotates, or any central line or pivotal point.
  22. The straight line, real or imaginary, round which a body revolves; a straight line in a plain figure, about which it revolves to produce a solid; a right line dividing the section into two equal parts, and cutting all its ordinates at right angles; the second vertebra of the neck, with an upward process on which the atlas turns; the central part or column of a plant, around which the other parts are disposed; a particular ray of light from any object falling perpendicularly on the eye, called also the optic or visual axis. The axis of a balance, that line about which it turns; The axis of oscillation, a right line parallel to the horizon, about which a pendulum vibrates; the axis in peritrachio, or wheel and axis, one of the mechanical powers, consisting of a wheel concentric with a cylindrical axis, with which it revolves.
  23. The line, real or supposed, round which anything revolves.
  24. The main stem or central cylinder; the fundamentally central line of a structure; the second cervical vertebra.

Usage examples for axis

  1. I saw the light, of which I thought I had seen my last, once more; but the axis of vision remained fixed. – The Room in the Dragon Volant by J. Sheridan LeFanu
  2. The anteroposterior measurements of the skull all were taken along the shortest line between the points specified below and are not necessarily along a line parallel to the long axis of the skull. – Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado by Sydney Anderson
  3. A new view of the heavens has quietly come, for the earth's axis has changed its place. – Memoir and Letters of Francis W. Newman by Giberne Sieveking
  4. 8. The telescope is attached at its centre to an axis at right angles to its length. – The Story of the Heavens by Robert Stawell Ball
  5. Thus, if a cone be cut by a plane at right angles to its axis we get a circle. – Essays: Scientific, Political, & Speculative, Vol. I by Herbert Spencer
  6. So swiftly does the revolving world carry our sorrow into the sun, our mirth into the shade, that it is as if the speed of the planet had caught something of the impatience of age, and it were hurried round upon its axis with the quickened pulses of senility. – English Society by George Du Maurier
  7. The finished bulb should be a nearly perfect sphere, with the axis of the tube passing through its center, and the portion of the tube adjoining the bulb must not be distorted, twisted, or blown out. – Laboratory Manual of Glass-Blowing by Francis C. Frary
  8. Let us return to the Sirex, reduced by abstraction to its axis. – The Glow-Worm and Other Beetles by Jean Henri Fabre
  9. The rest itself holds the tool firmly fixed in it, and slides along the bench in a direction parallel with the axis of the work. – The-Romance-of-Industry-and-Invention by Cochrane, Robert
  10. Through its centre passes an iron axis, with a handle at each end. – Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson by Thomas Jefferson
  11. This in Ceylon is very extensively done, in dryers of different kinds, some patterned after the American fruit dryer, some in slowly rotating cylinders through the axis of which a powerful blast of hot air is driven. – Cacao Culture in the Philippines by William S. Lyon
  12. It had long been believed that that tremendous accumulation unbalanced the globe and was the principal cause of the unsteadiness of the earth's axis of rotation. – The Second Deluge by Garrett P. Serviss
  13. The motion of the earth being northward, that end of its axis resembled the prow of a ship. – The Second Deluge by Garrett P. Serviss
  14. The round earth rolls upon its axis, and that makes the moon seem to rise higher and higher, and then sink away below the western horizon. – Uncle Robert's Geography (Uncle Robert's Visit, V.3) by Francis W. Parker and Nellie Lathrop Helm
  15. In the first place the earth actually revolves on its axis in twenty- three hours, fifty- six minutes, and four seconds. – Christopher and the Clockmakers by Sara Ware Bassett
  16. This arrangement altered the position of the stairs, and stairs and hall became the central axis of the house. – Remodeled Farmhouses by Mary H. Northend
  17. You're as true to the world as the world to its axis, But you chuckle to swear off your personal taxes. – Impertinent Poems by Edmund Vance Cooke
  18. The other elements of the unknown orbit- its eccentricity and the position of its axis- are all to be ascertained in a similar manner. – The Story of the Heavens by Robert Stawell Ball
  19. It is not difficult to see that the axis of perspectivity m is the line joining B' and C. Given any point D on u, to find the corresponding point D' on u' we proceed as follows: Join D to S and note where the joining line meets m. – An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman