plural noun Ty·ran·ni \tə̇ˈraˌnī, -a(ˌ)nē; tīˈraˌnī\

Definition of Tyranni

  1. :  a suborder of Passeriformes that comprises birds possessing little power of song and having the tendon of the hind toe separate and the intrinsic muscles of the syrinx reduced to usually one pair the ends of which are inserted on the sides instead of the tips of its cartilaginous semirings and that includes the South American antbirds, oven birds, and woodhewers together with the tyrant flycatchers and related birds of both hemispheres

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Origin and Etymology of tyranni

New Latin, from Latin, plural of tyrannus tyrant

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