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range—1. The difference between the maximum and minimum of a given set of numbers; in a periodic process it is twice the amplitude, that is, the wave height. 2. The distance between two objects, usually an observation point and an object under observation.See slant range. 3. A maximum distance attributable to some process, as in visual range or the range of an aircraft. 4. The difference between high and low water in a tidal cycle. Ranges greater than 4 m are sometimes termed macrotidal and those less than 2 m are termed microtidal. Intermediate ranges are termed mesotidal. 5. In radar, lidar, and sodar, the radial distance measured outward from the location of the transmitter; ordinarily the distance to a target.
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