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
These dusters feature a slim flat base covered with a washable and reusable microfiber cloth that can slide under the bottom of appliances, picking up dust and other debris that has collected.
—
Jolie Kerr, Better Homes & Gardens, 14 Jan. 2026
Monroe never fell for fashion fads and instead gravitated towards a classic, minimalist wardrobe built around capri pants, boatneck shirts, duster coats, and chic sheath dresses.
—Kevin Huynh, InStyle, 10 Jan. 2026
That means shaking dusters outside to release particles, and washing rags in the washing machine along with a disinfecting solution of bleach or vinegar.
—Elizabeth Brownfield, Southern Living, 7 Jan. 2026
The brand’s renown has been fanned by the likes Beyoncé Knowles-Carter, who has sported a Bouguessa abaya as a long duster.
—Miles Socha, Footwear News, 5 Nov. 2025
See All Example Sentences for duster
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Cite this Entry
“Duster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duster. Accessed 20 Jan. 2026.
Kids 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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