- A hollow space, hole, or cavity.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for cavum
The medial branch terminates posteriorly at the level at which the cavum principale joins the cavum inferior.
It expands laterally to form a complete roof over the cavum principale (Fig. 10).
In the region of the internal nares, the nasal forms the lateral wall of the cavum principale (Fig. 12).
For example, the cartilaginous plate separating the cavum principale from the cavum medium is termed the lamina superior.
The posterior end of the cavum medium lies at the level of the posterior terminus of the septomaxillary.