fire ant
US /ˈfaɪər ænt/
UK /ˈfaɪər ænt/

1.
fourmi de feu
a small, aggressive, reddish-brown ant that inflicts a painful, burning sting and is native to South America but has been introduced elsewhere.
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Be careful where you step; there might be a fire ant nest nearby.
Fais attention où tu marches ; il pourrait y avoir un nid de fourmis de feu à proximité.
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The park was closed due to an infestation of fire ants.
Le parc a été fermé en raison d'une infestation de fourmis de feu.