cancellous
adjective
can·cel·lous kan-ˈse-ləs 
ˈkan(t)-sə-ləs
ˈkan(t)-sə-ləs of bone
: having a porous structure
Word History
Etymology
New Latin cancelli intersecting osseous plates and bars in cancellous bone, from Latin, lattice
First Known Use
1788, in the meaning defined above
Medical Definition
cancellous
adjective
can·cel·lous kan-ˈsel-əs ˈkan(t)-sə-ləs
ˈkan(t)-sə-ləs : having a porous structure made up of intersecting plates and bars that form small cavities or cells
cancellous bone
compare compact