Relating to or functioning as a fulcrum; serving as a pivot point or means of support and leverage.
From Latin 'fulcrum' with the adjective suffix '-al,' creating the most common adjectival form used in science and engineering contexts.
In biology, describing something as 'fulcral' means it's a crucial junction—and linguistically, it mirrors how the word describes physics, since both meanings hinge on something being a central point that everything else pivots around.
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