plural noun
Tra·cheo·pho·nae | \ˌtrākēəˈfōˌnē, trəˌkē-\

Definition of Tracheophonae 

in former classifications

: a group comprising clamatorial birds with the syrinx thin-walled and tracheal, the syringeal muscles few, and the semirings few and thin and including the families Dendrocolaptidae, Formicariidae, and Conopophagidae

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Other Words from Tracheophonae

tracheophone \ˈtrākēəˌfōn, trəˈk- \ adjective or noun

History and Etymology for Tracheophonae

New Latin, from trache- + Greek phōnē sound, voice

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