(Naut.) A topmast arranged with metal bands so that it will readily slide up and down the lower mast. [ 1913 Webster ]

(Surveying) The chain ordinarily used in measuring land. See Chain, n., 4, and Gunter's scale. [ 1913 Webster ]

A logarithmic line on Gunter's scale, used for performing the multiplication and division of numbers mechanically by the dividers; -- called also line of lines, and line of numbers. [ 1913 Webster ]

A thin quadrant, made of brass, wood, etc., showing a stereographic projection on the plane of the equator. By it are found the hour of the day, the sun's azimuth, the altitude of objects in degrees, etc. See Gunter's scale. [ 1913 Webster ]

A scale invented by the Rev. Edmund Gunter (1581-1626), a professor of astronomy at Gresham College, London, who invented also Gunter's chain, and Gunter's quadrant. [ 1913 Webster ]

☞ Gunter's scale is a wooden rule, two feet long, on one side of which are marked scales of equal parts, of chords, sines, tangents, rhombs, etc., and on the other side scales of logarithms of these various parts, by means of which many problems in surveying and navigation may be solved, mechanically, by the aid of dividers alone. [ 1913 Webster ]