plural heirlooms
1
: a valuable object that is owned by a family for many years and passed from one generation to another
a priceless family heirloom
2
US
: an old type of plant that is still available because individual people have continued to grow it for many years
—usually used before another noun
heirloom tomatoes
heirloom roses
Cite this Entry
“Heirloom.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/heirloom. Accessed 18 Jun. 2026.
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