Bible Dictionaries
Tracheophonae

Webster's Dictionary

(n. pl.) A group of passerine birds having the syrinx at the lower end of the trachea.

Bibliography Information
Webster, Noah. Entry for 'Tracheophonae'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/tracheophonae.html. 1828.