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
One air tanker made a retardant drop at the beginning of the incident, which slowed the spread and helped ground resources contain the fire's growth.
—
Ca Wildfire Bot, Sacbee.com, 21 June 2025
Prior to their evacuation, our son sent us videos of tanker planes dropping red fire retardant overhead.
—Inga, San Diego Union-Tribune, 3 Feb. 2025
California Air National Guard video shared Wednesday shows a pilot’s point-of-view as the aircraft flies over and drops retardant on the Hughes Fire in Castaic, near Los Angeles.
—David Caraccio, Sacramento Bee, 23 Jan. 2025
With the assistance of Cal Fire planes dropping water and retardant, fire department officials reported halting the forward progress by 5:08 p.m.
—Devan Patel, Mercury News, 24 May 2025
See All Example Sentences for retardant
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Ca Wildfire Bot, Sacbee.com, 21 June 2025
Prior to their evacuation, our son sent us videos of tanker planes dropping red fire retardant overhead.
—Inga, San Diego Union-Tribune, 3 Feb. 2025
California Air National Guard video shared Wednesday shows a pilot’s point-of-view as the aircraft flies over and drops retardant on the Hughes Fire in Castaic, near Los Angeles.
—David Caraccio, Sacramento Bee, 23 Jan. 2025
With the assistance of Cal Fire planes dropping water and retardant, fire department officials reported halting the forward progress by 5:08 p.m.
—Devan Patel, Mercury News, 24 May 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 3 Jul. 2025.
Copy CitationKids Definition
retardant
adjective
re·tar·dant
ri-ˈtärd-ᵊnt
: serving or tending to retard
flame-retardant fabrics
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