Shaped like a club, with a narrow base that gradually widens toward the rounded tip.
From Latin 'clava' (club, cudgel) plus '-ate' (having, shaped like), used since the 18th century in botany and biology to describe club-shaped structures.
Imagine a baseball bat or a mushroom with a thick, rounded head on top—that's the clavate shape, and you see it in everything from certain fungi to the antennae of insects.
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