Open or spongy, like certain porous bones(adjective)
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Use "cancellated" in a sentence
"The navicular bone consists normally of compact and cancellated tissue arranged in certain proportions, the compact tissue without, and the cancellated within."
"These proportions can only be judged of by the examinations of sections of the bone, and when it is found in any case that the cancellated tissue bulks more largely in the formation of the bone than normally it should, we have what we may term a weak navicular bone."
"As the disease progresses, there is softening and enlarging of the cancellated tissue towards the centre of the bone."