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se·ro·fi·brin·ous -'fī-brin-əs adj composed of or characterized by serum and fibrin <a \serofibrinous exudate> <\serofibrinous pleurisy>
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adj.
describing an exudate of serum that contains a high proportion of the protein fibrin.
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se·ro·fib·rin·ous (sēr″o-fiґbrin-əs) both serous and fibrinous.Medical dictionary. 2011.