Inclination of the needle

See Dip of the needle, under Dip.

See also: Inclination

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
By moving a small compass across the surface of the terrella, Gilbert could reproduce all compass needle behaviors observed around the earth--not just the tendency of a horizontal needle to point north but also the inclination of the needle to the vertical, as observed by Norman.