Function: noun
Date: 1855
: a graduated rod used in measuring the vertical distance between a point on the ground and the line of sight of a surveyor's level
Function: noun
Date: 1855
: a graduated rod used in measuring the vertical distance between a point on the ground and the line of sight of a surveyor's level
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012