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Hectometer or hectometre is a measurement of distance. It is equal to 100 meters. It is a uncommonly used unit of length in the metric system. Plural name is hectometers.
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.