- course protractor
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a navigational instrument for measuring the bearing of a course as given on a chart, having a disk calibrated in degrees and an arm pivoted about the center of the disk.
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Universalium. 2010.
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Universalium. 2010.
course protractor — noun : a navigation instrument for measuring bearings and comparing them against chart courses * * * a navigational instrument for measuring the bearing of a course as given on a chart, having a disk calibrated in degrees and an arm pivoted about … Useful english dictionary
protractor — /proh trak teuhr, preuh /, n. 1. a person or thing that protracts. 2. (in surveying, mathematics, etc.) an instrument having a graduated arc for plotting or measuring angles. 3. Anat. a muscle that causes a part to protrude. [1605 15; < ML; see… … Universalium
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