<physics> Deviation of a falling body, that deviation from a strictly vertical line of descent which occurs in a body falling freely, in consequence of the rotation of the earth. Deviation of the compass, the angle which the needle of a ship's compass makes with the magnetic meridian by reason of the magnetism of the iron parts of the ship. Deviation of the line of the vertical, the difference between the actual direction of a plumb line and the direction it would have if the earth were a perfect ellipsoid and homogeneous, caused by the attraction of a mountain, or irregularities in the earth's density.
Origin: LL. Deviatio: cf. F. Deviation.
(01 Mar 1998)
|Bookmark with:||word visualiser||Go and visit our forums|