Definition from Wiktionary, the free dictionary
posthole (plural postholes)
- (archaeology) A cut feature used to hold a surface timber or stone, usually much deeper than it is wide.
2007 January 31, John Noble Wilford, “Village May Have Housed Builders of Stonehenge”, New York Times:
- Indentations in the floor were interpreted as postholes and slots that once anchored wooden furniture.