unifacial

/ yo̅o̅′nə-fā′shəl /

1. Flaked in such a way as to produce a cutting edge that is sharp on one side only. Used of a stone tool.
2. ◆ Unifacial tools are known as a unifaces and include early core tools such as choppers as well as later flake tools such as scrapers and adzes.
3. Compare bifacial