[ bahy-fey-shuh l ]
/ baɪˈfeɪ ʃəl /


having two faces or fronts.
Archaeology. having the opposite surfaces alike, as some tools.

Nearby words

  1. biernacki's sign,
  2. bierstadt,
  3. bierstadt, albert,
  4. bierstube,
  5. biestings,
  6. bifarious,
  7. bifariously,
  8. biff,
  9. biffer,
  10. biffex

Origin of bifacial

First recorded in 1880–85; bi-1 + facial

Related formsbi·fa·cial·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for bifacial


/ (baɪˈfeɪʃəl) /


having two faces or surfaces
botany (of leaves, etc) having upper and lower surfaces differing from each other
archaeol (of flints) flaked by percussion from two sides along the chopping edge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for bifacial


[ bī-fāshəl ]

Flaked in such a way as to produce a cutting edge that is sharp on both sides. Used of a stone tool.♦ Bifacial tools are known as a bifaces and include such early core tools as hand axes and cleavers as well as later flake tools such as blades and spear or arrow points. Compare unifacial.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.