Abney level
Noun 1. a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target (hypernym) surveyor's level | ||||
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ABNEY LEVEL definition was found in categories: Science & Technology(1)
ABNEY LEVEL Definition from Science & Technology Dictionaries & Glossaries
| CAVE AND KARST TERMINOLOGY |
ABNEY LEVEL
A type of clinometer with a bubble tube used in cave survey to determine vertical angles.
A type of clinometer with a bubble tube used in cave survey to determine vertical angles.