Having club-shaped antennae, especially used in entomology to describe beetles and insects whose antennae gradually widen toward the tip like a club.
From Latin 'clavis' (key or club) + 'cornu' (horn/antenna). The term describes the shape of antennae in various insect groups, particularly beetles in the order Coleoptera.
Naturalists developed dozens of antenna-shape descriptive words to classify insects, and 'clavicorn' became super useful because club-shaped antennae are so distinctive—beetles with clubbed antennae often use them to smell out their mates and food sources with incredible precision.
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