English Etymology From bi- + facial. Pronunciation Rhymes: -eɪʃəl Adjective bifacial (not comparable) Having two faces or opposing surfaces. (archaeology, of a flint tool) Having two sharp cutting edges. Derived terms bifacial corebifaciallyisobifacial Related terms biface Spanish Pronunciation IPA(key): (Spain) /bifaˈθjal/ [bi.faˈθjal] IPA(key): (Latin America, Philippines) /bifaˈsjal/ [bi.faˈsjal] Rhymes: -al Syllabification: bi‧fa‧cial Adjective bifacial m or f (masculine and feminine plural bifaciales) bifacialWikiwand - on Seamless Wikipedia browsing. On steroids.