The action or process of using flint; striking flint to create sparks; or shaping flint into tools.
From 'flint' (the stone) plus the '-ing' suffix, which can form gerunds (nouns from verbs) or present participles.
Archaeological evidence shows humans have been 'flinting'—deliberately shaping flint—for over 2 million years. It's one of our species' oldest technologies and required surprising cognitive sophistication.
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