epsilon squared

( n.)

   A  quantity  even  smaller  than {epsilon}, as small in comparison to
   epsilon  as epsilon is to something normal; completely negligible. If
   you  buy  a  supercomputer  for  a  million  dollars, the cost of the
   thousand-dollar  terminal to go with it is {epsilon}, and the cost of
   the  ten-dollar  cable  to  connect  them is epsilon squared. Compare
   {lost in the underflow}, {lost in the noise}.

[glossary]
[Reference(s) to this entry by made by: {lost in the underflow}]