noun Download 🔗Share Any of various nocturnal insects from the family Myrmeleontidae whose adults resemble damselflies and whose larvae bury themselves under a cone-shaped pit in sand to trap insects such as ants. Examples : "While walking in the sandy desert, we found several cone-shaped pits, evidence that antlions were waiting patiently for their next meal of unsuspecting ants. " insect animal nature biology Chat with AIVocabulary GamePractice Reading