ˈoutkeeper
[out- 8.]
An instrument used in land-measuring: see quot.
| 1875 Knight Dict. Mech. 1582/1 Outkeeper, a small dial-plate having an index turned by a milled head underneath, used with the surveyor's compass to keep tally in chaining. The dial is figured from 0 to 16, the index being moved one notch for every chain run. |