Cancellous a. : Having a spongy or porous structure; made up of cancelli; cancellated; as, the cancellous texture of parts of many bones.

Example:
What is the difference between compact bone and Cancellous bone?

Taxonomy
Cancellous bone, bone, substantia spongiosa, free encyclopedia, osseous tissue, cortical bone, tissue, trabecular bone, Musculoskeletal system, cartilage, long bone, bony trabeculae, spongy bone, red bone marrow, connective tissue, search, Illustration, pink.

Defination from the web:
Cancellous bone, synonymous with trabecular bone or spongy bone, is one of the two types of osseous tissue that form bones. ... Cancellous bone is highly vascular and frequently contains red bone marrow where hematopoiesis, which is the production of blood cells, occurs. ...