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12 points
MUCINOUS is validvalid
MUCIN, a protein secreted by the mucous membranes [adj]
of or like mucin, a substance produced by mucous membranes, also MUCINOID [adj]
MUCIN, a protein secreted by the mucous membranes [adj]
of or like mucin, a substance produced by mucous membranes, also MUCINOID [adj]