Ar ti o dac' tyl, an ungulate with an even number of toes.
A sex' u al, without sex.
Au' di to ry, pertaining to hearing.
Barb, one of the lateral outgrowths of the shaft of a feather, forming the vane.
Barb ule, a small outgrowth of the barb of a feather.
Bi lat' er al sym' me try, having the right and left sides mirror images one of the other.
Body cavity, the space between the body wall and the alimentary canal.
Body-wall, the outer wall in bodies of the many-celled animals.
Budding, a form of fission in which a cell or portion of the body forms a small protuberance or bud, which is then cut off from the parent and forms a new individual.