A person who carries or holds a key, or in ant colonies, a worker ant with clubbed antennae.
From Latin clavis (key) + -ger (carrier). The suffix -ger comes from gerere, meaning to carry or bear. This term originated in entomology to describe specific ant morphology.
Ant colonies are so organized that they have special worker castes with different body shapes for different jobs—clavigers literally have antenna-shaped like clubs, which scientists use to identify them. It's like nature invented job titles based on physical features!
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