A very small areole; a tiny distinct space or region, used especially in describing fine details of plant or insect structures.
From 'areole' plus the diminutive suffix '-let' (very small). This creates a hierarchy: area → areola → areole → areolet.
Areolets are the microscopic version of areoles—when botanists or entomologists need to describe incredibly tiny subdivisions in wing patterns or plant tissues, they use this specialized term.
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