Definition of body axis in English:

body axis


  • 1Each of a set of geometrical axes which define directions with respect to a three-dimensional object; (Aeronautics) each of a set of rectangular coordinate axes having their origin at the centre of gravity of an aircraft and the x-axis along its longest dimension.

  • 2Biology a main line of growth, direction, organization, or symmetry within the body of an organism.


Mid 19th century; earliest use found in Transactions of the American Philosophical Society.