( n. )
An instrument used, especially in trigonometrical surveying, for the accurate measurement of horizontal angles, and also usually of vertical angles. It is variously constructed.
( n. )
An instrument used, especially in trigonometrical surveying, for the accurate measurement of horizontal angles, and also usually of vertical angles. It is variously constructed.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012