rotation axis

noun Crystallography.

an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position.

Nearby words

  1. rotary wing,
  2. rotary-till,
  3. rotate,
  4. rotating,
  5. rotation,
  6. rotation flap,
  7. rotation of axes,
  8. rotation vector,
  9. rotation-inversion axis,
  10. rotational

Origin of rotation axis

First recorded in 1900–05

Also called axis of symmetry, symmetry axis of rotation. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019