Pronunciation: (ô'gur),[key] —n. 1. Carpentry. a. a bit, as for a brace.
b. a boring tool, similar to but larger than a gimlet, consisting of a bit rotated by a transverse handle.
2. See earth auger. 3. a device consisting of a shaft with a broad helical flange rotating within a cylindrical casing to force bulk materials from one end to the other.
4. snake (def. 3a).