Pelecaniformes

from WordNet (r) 3.0 (2006)

Pelecaniformes
    n 1: pelicans; frigate birds; gannets; cormorants [syn:
         {Pelecaniformes}, {order Pelecaniformes}]

from The Collaborative International Dictionary of English v.0.48

Pelecaniformes \Pel`e*can`i*for"mes\, n. pl. [NL. See {Pelican},
   and {-form}.] (Zool.)
   Those birds that are related to the pelican; the Totipalmi.
   [1913 Webster]