Final answer:
The space that allows for the opposing canine tooth to fit when the jaw is closed is known as the canine eminence or canine fossa, which is important for proper teeth alignment and efficient chewing.
Step-by-step explanation:
The space between the incisors and the canine tooth that leaves room for the opposing canine to fit when the jaw is closed is commonly known as the canine eminence or the canine fossa. It is a vital aspect of dental anatomy as it allows for the proper alignment of teeth when the jaws are brought together. This alignment is crucial for efficient chewing and biting.