magnetic compass
21Compass rose — For the meteorological graphic, see Wind rose A common compass rose as is found on a nautical chart showing both true and magnetic north with magnetic declination A compass rose, sometimes called a windrose, is a figure on a compass, map, nau …
22magnetic — adj. 1 a having the properties of a magnet. b producing, produced by, or acting by magnetism. 2 capable of being attracted by or acquiring the properties of a magnet. 3 very attractive or alluring (a magnetic personality). Phrases and idioms:… …
23magnetic deviation — The angular difference between the magnetic heading and the compass heading, expressed in degrees east or west to indicate in which direction the end of the compass heading is offset from the magnetic heading. It is one of the errors in a… …
24compass — n. & v. n. 1 (in full magnetic compass) an instrument showing the direction of magnetic north and bearings from it. 2 (usu. in pl.) an instrument for taking measurements and describing circles, with two arms connected at one end by a movable… …
25magnetic dipole — Tiny magnet with subatomic dimensions, equivalent to the flow of electric charge around a loop. Examples include electrons circulating around atomic nuclei, rotating atomic nuclei, and single subatomic particles with spin. On a large scale, these …
26compass — Synonyms and related words: Gyrosin compass, Johansson block, RDF, T square, accept, accomplish, achieve, acquire, aesthetic distance, alentours, ambience, ambit, amount, annex, attain, beleaguer, beset, besiege, blockade, border line,… …
27magnetic north — noun the direction in which a compass needle points • Syn: ↑north, ↑compass north • Hypernyms: ↑direction * * * noun [noncount] : the direction or area to the north toward which the needle of a compass points compare ↑true north * * * magˌnetic… …
28compass swinging — A procedure for calculating and correcting for the effects of an aircraft’s magnetic field on its magnetic compass. The aircraft is taken to a designated area where, with all its services that are normally on during a flight, its deviation is… …
29Compass navigation system — For navigation with a magnetic compass, see compass. Comparison of GPS, GLONASS, Galileo and Compass (medium earth orbit) satellite navigation system orbits with the International Space Station, Hubble Space Telescope and Iridium constellat …
30magnetic course — The direction of the longitudinal axis of an aircraft in flight measured clockwise from magnetic north. It is the heading indicated by a magnetic compass after correcting for deviation. Magnetic compass. Magnetic course = 045° Magnetic course =… …
