Synonyms of the word 
BIFACE → BIDIRECTIONAL - BIFACIAL
biface
- n. (archaeology) A double-sided stone tool.
bidirectional
- adj. Moving in two directions (usually opposite).
- adj. Operating or functioning in two directions (usually opposite).
bifacial
- adj. Having two faces or opposing surfaces.
- adj. (archaeology, of a flint tool) Having two sharp cutting edges.
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