Plural of carbonado: either grilled meat dishes with parallel cuts, or extremely tough, dark industrial diamonds used for drilling and cutting tools.
Spanish plural of carbonado, from carbón (coal/charcoal). In English, adopted for both culinary and industrial contexts, showing semantic drift from cooking to materials science.
Carbonado diamonds are some of the hardest and darkest diamonds on Earth, and scientists still debate whether they formed in space and fell to Earth as meteorites or were created in Earth's crust—making them one of geology's unsolved mysteries.
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