diurnal aberration

diurnal aberration (plural diurnal aberrations)

1. (astronomy) A deviation due to the earth's axial rotation.

• Lesley Brown, editor-in-chief, William R. Trumble and Angus Stevenson, editors (2002), “diurnal aberration”, in The Shorter Oxford English Dictionary on Historical Principles, 5th edition, Oxford, New York, N.Y.: Oxford University Press, →ISBN, page 7.