Word Study
leveling (root: level)
CIDE DICTIONARY
leveling, n. [Written also levelling.].
- The act or operation of making level. [1913 Webster]
- 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. [1913 Webster]
Leveling instrument. See Surveyor's level , under Level , n. -- Leveling staff, a graduated rod or staff used in connection with a leveling instrument for measuring differences of level between points.
For further exploring for "leveling" in Webster Dictionary Online