The surgeon examined the periotic bone to assess damage near the inner ear.

The paleontologist carefully extracted the periotic from the fossilized skull to study the animal's hearing.

The museum's fossil display included several periotics that revealed details of the ancient whale's inner ear.

The conservator carefully labeled the periots before placing them into climate-controlled storage.

The antiquarian explained that a periot was an obsolete unit of weight equal to one nine-thousand-six-hundredth of a grain.