Definition of "microburin"

microburin

noun
plural microburins
1. A characteristic waste product from the ancient manufacture of lithic tools: a fragment of a lithic flake or blade that shows on its upper face the beginnings of a notch terminating in an oblique flection that ends in a very acute trihedral apex.
  Quotations
  It is also worth noting that although the NEG II inhabitants were familiar with the microburin technique (MBT), they did not use it systematically.
  2016 January 28, “Nahal Ein Gev II, a Late Natufian Community at the Sea of Galilee”, in PLOS ONE‎