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Use "knoblike" in a sentence
"They isolated H5N1's "surface proteins" -- knoblike structures that the immune system uses to identify an invader -- and attached them to a benign virus that could be administered to people."
"He was wearing a blue-and-gray plaid bathrobe that ended just short of his pale, knoblike knees."
""Boss ... circular protuberance or knoblike swelling -""