cancellous

adj. Anatomy
Having an open, latticed, or porous structure. Used especially of bone.

[From Latin cancellus, lattice. See cancel.]

(kăn-sĕl'əs, kăn'sə-ləs)
adj.

Cancellated.

Of a reticular, spongy or lattice-like structure; said mainly of bone tissue.

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The adjective has one meaning:

Meaning #1: (anatomy) having an open or latticed or porous structure
  Synonyms: cancellate, cancellated

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