Archaic or technical term referring to sharpness or pungency, particularly of taste or odor.
From Latin 'acor' meaning acrid taste or sharp flavor, related to 'acer' (sharp), a root that also gives us 'acrid' and 'acid'.
The word 'acor' is Latin for that sharp, biting taste that makes you wince—it's the same root that gives us 'acrid,' and it was used by medieval physicians to classify medicines by their intensity and effect.
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