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A pit, groove, cavity, or depression, of greater or less depth; as, the temporal fossa on the side of the skull; the nasal fossæ containing the nostrils in most birds.

A species of civet (Viverra fossa) resembling the genet.

Of or pertaining to the diameter of the cranium, from one parietal fossa to the other.

The temple or temporal fossa. Also used adjectively.

A depression in the sphenoid bone; the pituitary fossa.

See Fossa. Fosse road. See Fosseway.

A slight depression or pit; a fossa.

Having the form of a smooth and shallow depression; sockas, the glenoid cavity, or fossa, of the scapula, in which the head of the humerus articulates.

Below the clavicle; as, the infraclavicular fossa.

Below the spine; infraspinal; esp., below the spine of the scapula; as, the infraspinous fossa; the infraspinate muscle.

Between condyles; as, the intercondylar fossa or notch of the femur.

Of or pertaining to the pituitary body; as, the pituitary fossa. Pituitary body or gland (Anat.), a glandlike body of unknown function, situated in the pituitary fossa, and connected with the infundibulum of the brain; the hypophysis. -- Pituitary fossa (Anat.), the ephippium.

Situated behind the glenoid fossa of the temporal bone.

The region of the skull, in the temporal fossa back of the orbit, where the great wing of the sphenoid, the temporal, the parietal, and the frontal hones approach each other.

, an inner and an outer. The posterior nares pass through the space, called the pterygoid fossa, between the processes.

The point on the side of the skull where the temporal line, or upper edge of the temporal fossa, crosses the coronal suture.

Situated above the temporal bone or temporal fossa. -- n.

A groove; a fossa; as, the vallecula, or fossa, which separates the hemispheres of the cerebellum.

art of the neural arch of the vertebræ of most snakes and some lizards, which fits into a fossa, called the zygantrum, on the back part of the arch in front.