Definition of robber fly in English:

robber fly

Syllabification: rob·ber fly

noun

A large powerful predatory fly that darts out and grabs insect prey on the wing.
More example sentences
  • The nerve toxins immobilize the hapless insect, while the digestive enzymes turn its innards to mush, which the robber fly consumes.
  • Grasshoppers here and in other grasslands are readily eaten by both vertebrate and arthropod predators (including robber flies and especially spiders).

Definition of robber fly in:

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Pronunciation: fləˈdʒɪʃəs
adjective
(of a person or their actions) criminal; villainous