Carol tried to stare them down but in face of the impishness of the boys and the bovine gaping of the men, she was embarrassed.
There are no more uses of "bovine" in the book.
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She showed a bovine apathy.
According to the U.N.’s Food and Agriculture Organization, the meat industry generates more worldwide greenhouse-gas emissions than the transportation industry because of the nitrous oxide in manure and the methane that results from bovine digestion.