fissirostral

from The Century Dictionary.

• In ornithology, having the beak broad and deeply cleft, as a swallow, swift, or goatsucker; specifically, of or pertaining to the Fissirostres. This group has been abolished, but fissirostral is retained as a convenient descriptive epithet.

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

• adjective (Zoöl.) Having the bill cleft beyond the horny part, as in the case of swallows and goatsuckers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Having the bill cleft beyond the horny part, as in the case of swallows and goatsuckers.