a cow that is raised for its milk rather than for beef.
Informal. a source of easily gained income; profitable venture:
The new subsidiary turns out to be a real milk cow.


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  • Milker

    [mil-ker] /ˈmɪl kər/ noun 1. a person or thing that . 2. . 3. a cow or other animal that gives . /ˈmɪlkə/ noun 1. a cow, goat, etc, that yields milk, esp of a specified quality or amount: a poor milker 2. a person who milks 3. another name for milking machine

  • Milk-fever

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