Adiamante is a 1996 science fiction novel written by L. E. Modesitt, Jr.[1][2] It is outside the span of his series work but maintains several of his main themes, including justification of pre-emptive force, nanotechnology, a nearly destroyed but rebuilt Earth, misuse of technology leading to man's downfall, internalized information networks, and shortening or slurring of the names of present-day cities, countries and ethnic groups, along with historical events.

After gaining amazing power over genetics and technology, three sects of humanity have developed and split after a civil war on earth forced them apart.

Cybs are the descendants of people who integrated their consciousness with computers and whose objective is to lead a life bound strictly by machine-like logic and precision.

While they have achieved great technological prowess their understanding of their motives, which they arrogantly presume to be logical, is highly flawed.

Possibly the name is derived from American English meaning dregs, or the refuse left from brewing.