Of, pertaining to or characterized by bullae(adjective)
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Use "bullous" in a sentence
"An uncommon but serious form of lupus rash results in the development of large blisters and is called a "bullous" lupus rash."
"Plus the bullous lung disease and a host of other respiratory problems"
"Such cases include those of severe kyphoscoliosis, occasionally widespread and far-advanced pulmonary tuberculosis, some cases of bullous emphysema with replacement or compression of active lung tissue."