To shorten by cutting the end off. An example of this in computer terms would be the rounding of floating-point numbers, such as a program may "truncate" the value of pi (3.14159265&) to 3.14. Notice that truncation will always round the number down. The number 1.5999 becomes 1.5, never 1.6.

See also : cyber sit-in  
NetLingo Classification: Technical Terms