SYN: spongy.
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spon·gi·form 'spən-ji-.fȯrm adj of, relating to, or being a degenerative disease which causes the brain tissue to have a porous structure like that of a sponge <\spongiform lesions>
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spon·gi·form (spunґjĭ-form) resembling a sponge.Medical dictionary. 2011.