quadrate

And so is the square H quadrate made in the circle assigned, as the conclusion willeth.

The middle segment becomes in mammals the incus (one of the ear-ossicles), and in birds the quadrate.

The hyoid is at first connected with the skull, 140but afterwards frees itself and becomes slung to the "quadrate."

This movable bone unites with parts of the palate and the face, and is known as the quadrate bone.

With these conditions of the quadrate bone are associated cold blood, terrestrial life, and young developed from eggs.