from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Characteristically scratching the ground for food. Used of chickens and similar birds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Scratching the ground for food, as domestic fowl or other gallinaceous birds.
- adj. Pertaining to the now obsolete order Rasores.
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to the Rasores, or gallinaceous birds, as the peacock, domestic fowl, partridge, quail, and the like.
from The Century Dictionary and Cyclopedia
- Given to scratching the ground for food, as poultry; belonging to the Rasores, especially in the second sense of that word; gallinaceous.
There is the same need for a substitute for rasorial, which is only applicable to birds.
This is a very peculiar and important character, since it plainly indicates the analogy of this form to _Ramphastos, Buceros_,  and numerous other rasorial types.
Two pigeons and four species of quail are all the rasorial birds in the island; the true gallinaceous birds being wholly wanting.
If an animal, for example, is the suctorial member of a circle of species, forming the natatorial type of genera, forming a family or sub-family which in its turn is rasorial, its qualities must evidently be greatly mingled and ill to define.
Amongst external characters, we generally find power of limbs and feet for locomotion on land, (to which the rasorial type is confined,) abundant tail and ornaments for the head, whether in the form of tufts, crests, horns, or bony excrescences.
The rasorial type comprehends most of the animals which become domesticated and useful to man, as, first, the fowls which give a name to the type, the ungulata, and more particularly the ruminantia, among quadrupeds, and the dog among the ferae.
Now, amongst individuals, some appear to be almost exclusively of the sub - typical, and others of the rasorial characters, while to a limited number is given the finely assorted assemblage of qualities which places them on a parallel with the typical.
In the animal kingdom, the mollusca are the rasorial type, which, however, only shews itself there in their soft and sluggish character, and their being very generally edible.
And for this idea there is, even in the present imperfect state of our knowledge of animated nature, some countenance in ascertained facts, the birds of Australia, for example, being chiefly of the suctorial type, while it may be presumed that the observation as to the predominance of the useful animals in the Old World, is not much different from saying that the rasorial type is there peculiarly abundant.
In the ptilota, or winged insects, the hymenopterous are the rasorial type, and it is not therefore surprising to find amongst them the ants and bees, "the most social, intelligent, and in the latter case, most useful to man, of all the annulose animals."