A small circular or ring-like space or area, particularly in anatomy or botany; a variant or related form of areola.
From Latin 'areola' (small area), diminutive of 'area.' The 'ar-' prefix variant form appears occasionally in scientific literature but is less standard than 'areola.'
Scientists sometimes created variant spellings to sound more Latin and scholarly—'arerola' is like the overly formal cousin of 'areola' that didn't quite catch on!
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