1
: one that removes dust
2
a(1)
: a long lightweight overgarment to protect clothing from dust
(2)
: a long coat cut like a duster
called also duster coat
b
: a dress-length housecoat
3
: one that scatters fine particles
specifically
: a device for applying insecticidal or fungicidal dusts to crops
4
Examples of duster in a Sentence
He wore a tan duster.
Recent Examples on the Web
Use your vacuum’s arm extension, or invest in an extendable duster arm.
—
Ashley Chalmers, The Spruce, 8 Feb. 2026
The first photo shows Cavill clad in a stylish leather duster coat with shearling lining.
—Mekishana Pierre, Entertainment Weekly, 28 Jan. 2026
Layer a plush duster coat on top for extra warmth.
—Amanda Le, InStyle, 27 Jan. 2026
If your curtains are crafted of more delicate fabric—like silk curtains or sheer panels—use a microfiber duster or lint roller to remove dust instead.
—Caroline Lubinsky, Martha Stewart, 19 Jan. 2026
See All Example Sentences for duster
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show current usage.
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Ashley Chalmers, The Spruce, 8 Feb. 2026
The first photo shows Cavill clad in a stylish leather duster coat with shearling lining.
—Mekishana Pierre, Entertainment Weekly, 28 Jan. 2026
Layer a plush duster coat on top for extra warmth.
—Amanda Le, InStyle, 27 Jan. 2026
If your curtains are crafted of more delicate fabric—like silk curtains or sheer panels—use a microfiber duster or lint roller to remove dust instead.
—Caroline Lubinsky, Martha Stewart, 19 Jan. 2026
See All Example Sentences for duster
Cite this Entry
“Duster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duster. Accessed 14 Feb. 2026.
Copy CitationKids Definition
duster
noun
dust·er
ˈdəs-tər 
1
: one that dusts
2
a
: a loose-fitting usually lightweight long coat
called also duster coat
b
: a dress-length housecoat
3
: one that scatters fine particles
especially
: a device for applying insecticidal or fungicidal dusts to crops compare crop duster
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