Pygop´odes, n. pl. A group of birds distinguished by the far backward position, and deep burial, in common integument, of the legs.

Pygop´odous, a. Belonging to Pygopodes, or having the character of that group.

Py´gostyle, n. Last coccygeal vertebra, of peculiar size and shape in recent birds; also called the vomer.

Pylor´ic, a. Pertaining to the pylorus.

Pylo´rus, n. Opening from gizzard into duodenum; especially, valve guarding this orifice.

Pyr´iform, a. Pear-shaped.

Q.

Quadran´gular, a. Four-edged or four-angled.

Quad´rate, a. Squared.

Quad´rate Bone, n. See Os Quadratum. A peculiarly shaped bone interposed between the lower jaw and the rest of the skull.