An ant, or a member of the ant family Formicidae.
From Latin 'formica' (ant) + '-id' (relating to or belonging to). This term directly refers to ants as members of the scientific family Formicidae, using the simplified stem form.
Formicid is the technical term entomologists use when they want to sound extra professional, but it's basically just the fancy scientific word for 'ant'—it's the same root that gives us formication and formicidae.
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