1
a
: the quality or state of being fat or rich in fats : fullness of flesh : corpulence, obesity
b
: fertility, fruitfulness
the fatness of the orchards a land of all but incredible fatness and beauty—
Russell Lord
2
obsolete
: greasy or oily substance found in animal or vegetable matter : fat
3
: something that makes rich or fertile
let it come like the abundant fatness of the clouds upon the thirsting earth—
Benjamin Fine
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Merriam-Webster unabridged
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