The American Heritage® Dictionary of the English Language, 4th Edition
adj. Of, belonging to, or characteristic of the order Galliformes, which includes the common domestic fowl as well as the pheasants, turkeys, and grouse.
adj. related to the genus galina, poultry; notably said of the order Galliformes.
the GNU version of the Collaborative International Dictionary of English
adj. Resembling the domestic fowls and pheasants; of or pertaining to the Gallinae.
The Century Dictionary and Cyclopedia
Having the characters of a bird of the order Gallinæ or Gallinaceæ; rasorial.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or resembling a gallinacean
Word Usage
"They are allied to the gallinaceous birds, but differ from these and from all others in never sitting upon their eggs, which they bury in sand, earth, or rubbish, and leave to be hatched by the heat of the sun or by fermentation."