from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having, presenting, or oriented toward a single face.
  • adjective Archaeology Flaked in such a way as to produce a cutting edge that is sharp on one side only. Used of a stone tool.

from The Century Dictionary.

  • Having only one face, front, or aspect; all facing the same way, as the polypites of some corals; unifarious; secund. See cut under sen-kidney.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Having but one front surface.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Having, or showing, a single face.
  • adjective Having only one principal or specialized surface or edge.
  • adjective Cylindrical.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective having but one principal or specialized surface


Sorry, no etymologies found.


  • A team led by Michael R. Waters of Texas A&M University used thermoluminescence dating to estimate the ages of layers above and below one containing stone flakes and a few rocks resembling simple tools known as unifacial choppers.

    Early Hominids in Siberia?

  • Sally McBrearty. fi ned to the periphery (Mason, 1962) .7 A common form is a long foliate unifacial point with ventral bulbar reduction.

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