binary operation - Computer Programming. an operation in which one operator involves two operands, such as addition (X + Y) and subtraction (X - Y); in contrast to a unary operation that involves only one operand, such as a square root. Mathematics. any rule for combining two elements of a set to obtain a third element of some set. Examples of binary operations include addition and multiplication, as well as set union and intersection. ; дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр http://www.harcourt.com/dictionary/def/1/2/6/5/1265000.html;
