retardant
adjective
re·tar·dant
ri-ˈtär-dᵊnt 
: serving or tending to retard
a growth-retardant substance
retardant
noun
Examples of retardant in a Sentence
Recent Examples on the Web
Make sure any decorations used near Christmas lights are flame retardant or resistant.
—
Karen Brewer Grossman, Southern Living, 4 Dec. 2025
Even fire-retardant treatments on bamboo cannot stop ignition in extreme heat.
—Sujita Sinha, Interesting Engineering, 27 Nov. 2025
Air resources — including tankers — provided retardant support throughout the day and into the evening hours to slow down the progress of the fire.
—Ca Wildfire Bot, Sacbee.com, 8 Sep. 2025
In a Tuesday evening briefing, officials said more than 287,000 gallons of retardant and more than a million gallons of water had been dropped on the fire.
—The Press Democrat, Mercury News, 27 Aug. 2025
See All Example Sentences for retardant
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Karen Brewer Grossman, Southern Living, 4 Dec. 2025
Even fire-retardant treatments on bamboo cannot stop ignition in extreme heat.
—Sujita Sinha, Interesting Engineering, 27 Nov. 2025
Air resources — including tankers — provided retardant support throughout the day and into the evening hours to slow down the progress of the fire.
—Ca Wildfire Bot, Sacbee.com, 8 Sep. 2025
In a Tuesday evening briefing, officials said more than 287,000 gallons of retardant and more than a million gallons of water had been dropped on the fire.
—The Press Democrat, Mercury News, 27 Aug. 2025
See All Example Sentences for retardant
Cite this Entry
“Retardant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retardant. Accessed 8 Dec. 2025.
Copy CitationKids Definition
retardant
adjective
re·tar·dant
ri-ˈtärd-ᵊnt
: serving or tending to retard
flame-retardant fabrics
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