Biface
ahd-5
noun.
A bifacial stone tool.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
A double-sided
stone
tool
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
having two faces or fronts
Word Usage
"But Bergstrom identified it as a "biface" because it's been "flaked" on all sides."
Equivalent
bidirectional