fat
US /fæt/
UK /fæt/

1.
a natural oily or greasy substance occurring in animal bodies, especially when deposited as a layer under the skin or around certain organs.
:
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The chef trimmed the excess fat from the meat.
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Eating too much fat can be unhealthy.
1.
2.
large in amount or size.
:
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He received a fat bonus at the end of the year.
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The book was a fat volume with many pages.