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leveling rod
lev·el·ing rod (lĕv′ə-lĭng)n. A graduated pole or stick with a movable marker, used with a surveyor's level to measure differences in elevation. Also called leveling pole, leveling staff.rod (rɒd)
n. 1. a stick, wand, staff, or the like, of wood, metal, or other material. 2. a straight, slender shoot or stem of any woody plant, whether still growing or cut from the plant. 3. a slender bar or tube for draping towels over, suspending curtains, etc. 4. a. a stick used for measuring. b. a unit of linear measure, 5½ yards or 16½ feet (5.03 m); pole. c. a unit of square measure, 30¼ square yards (25.3 sq m); rood. 5. a stick, or a bundle of sticks or switches bound together, used as an instrument of punishment. 6. punishment or discipline. 7. a staff or scepter carried as a symbol of office, authority, etc. 8. authority, sway, or rule, esp. when tyrannical. 9. fishing rod. 10. lightning rod. 11. one of the rodlike cells in the retina of the eye, sensitive to low intensities of light. Compare cone (def. 5). 12. (in plastering or mortaring) a straightedge moved along screeds to even the plaster between them. 13. Bible. a branch of a family; tribe. Ps. 74:2; Jer. 10:16. 14. Slang. a pistol or revolver. 15. a collapsible pole, conspicuously marked with graduations, held upright so that it can be read at a distance by a surveyor. [before 1150; rodd, late Old English; akin to Old Norse rudda club] leveling rod
leveling rod, leveling staff  leveling rod A straight rod or bar, designed for use in measuring a vertical distance between a point on the ground and the line of collimation of a leveling instrument which has been adjusted to a horizontal position; usually made of wood and has a flat face which is graduated in terms of some linear unit and fractions thereof, the zero of the graduations being at one end of the rod; may have the graduations on a metal face. On some rods the graduation marks are designed to be read by the observer at the leveling instrument; another type, a target rod, carries a target which is moved into position according to signals made by the man at the instrument; when the target is bisected by the line of collimation, it is read by the rodman.LegalSeeRodFinancialSeerod |