spongy bone

n.

Bone in which the spicules form a latticework, with interstices filled with embryonic connective tissue or bone marrow.cancellous bone spongy substance trabecular bone
Any of the turbinate bones.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.