1. a shallow depression or hollow in a bone or other anatomical structure
Usage: anatomy
2. a carnivorous mammal native to Madagascar, resembling a cross between a cat and a mongoose
Usage: zoology

Examples

• The doctor pointed to the fossa in the skull where the muscle attached.
• The temporal fossa is located on the side of the skull.
• The fossa is Madagascar’s largest predator.
• Fossas are excellent climbers and hunt both day and night.
• The anatomical fossa provides space for important blood vessels.
• Wildlife researchers studied the fossa’s hunting behavior in the rainforest.