Leveling
From BiblePortal Wikipedia
Leveling [1]
(1): ( n.) The art or operation of using a leveling instrument for finding a horizontal line, for ascertaining the differences of level between different points of the earth's surface included in a survey, for establishing grades, etc., as in finding the descent of a river, or locating a line of railroad.
(2): ( n.) The act or operation of making level.
(3): ( p. pr. & vb. n.) of Level
