latirostres

from The Century Dictionary.

• In Sundevall's classification of birds, the fifth phalanx of the cohort Cichlomorphæ, embracing seven families more or less nearly related to the true flycatchers of the Old World (Muscicapidæ).
• In Sclater's system of 1880, a group of laminiplantar oscine Passeres, embracing the Hirundinidæ or swallows: equivalent to the Chelidonomorphæ of Sundevall.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) The broad-billed singing birds, such as the swallows, and their allies.