Flesh-colored hearing aids filled his ear cavities like flattened wads of bubble gum.

The ears of troodontids were also unusual among theropods, having extremely enlarged middle ear cavities, indicating acute hearing ability.

The middle ear cavity of troodontids and ornithomimosaurs was enlarged, suggesting sensitivity to low-frequency sounds.

The middle ear cavity has a complex of bony, air-filled passages and a branching eustachian tube.

In most cases, the ossicles and the middle ear cavity were dysmorphic.

In most frogs and toads, it is similar to that of reptiles, but in other amphibians, the middle ear cavity is often absent.

He loosened his grip on the screwdriver and withdrew it from the driver's ear cavity.

The feathers making up this disc can be adjusted in order to sharply focus sounds that come from varying distances onto the owls' asymmetrically placed ear cavities.

The move forces air through the Eustachian tube to the middle ear cavities.

Bone invasion and destruction are usually not seen in this tumor which expands within the mesotympanum (middle ear cavity).