What is the meaning of Carbonado?

Meat or fish that has been scored and broiled.

To make a carbonado of; to score and broil.

To cut or hack, as in combat.

A dark, non-transparent, impure form of polycrystalline diamond (also containing graphite and amorphous carbon) used in drilling.

carbonado (black diamond)

carbonado

past participle of carbonar

Source: wiktionary.org