Definition of heirloom
2 : something of special value handed down from one generation to another
The pin she's wearing is a family heirloom.
3 : a variety of plant that has originated under cultivation and that has survived for several generations usually due to the efforts of private individuals
heirloom tomatoes
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Time Traveler for heirloom
The first known use of heirloom was in the 15th century
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