A small crown-like structure or a diminutive corona, particularly in botany and zoology.
From corona (Latin 'crown') + -ule (Latin diminutive suffix -ulus). Coined in botanical and zoological terminology to describe tiny crown-shaped features.
The coronule is one of those 'microscopic crown' terms that scientists use—like how sea urchins have tiny coronules on their spines that look like miniature crowns under magnification.
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