Resembling or relating to very small apex structures, or having tiny tip-like projections.
From Latin 'apex' (tip) + '-illary' (diminutive suffix). An ultra-specific botanical term for structures that have small apical features, emphasizing minuteness.
Apicillary hairs on some plant leaves are so tiny they're barely visible, but they create the velvety texture you feel—nature using microscopic tip structures for everything from water repellency to insect deterrence.
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