antifreeze
noun
an·ti·freeze
ˈan-ti-ˌfrēz 
1
: a substance added to a liquid (such as the water in an automobile engine) to lower its freezing point
2
: any of various substances (such as proteins or alcohols) that are found in some living organisms (such as certain fish and insects) and serve to lower the freezing point of body fluids especially by limiting ice crystal growth
Examples of antifreeze in a Sentence
Recent Examples on the Web
Blacklegged ticks, also known as deer ticks, are highly adjusted to surviving cold temperatures by producing a type of natural antifreeze to prevent their cells from rupturing, according to Moleai.
—
Stephen Underwood, Hartford Courant, 6 Feb. 2026
Roads and sidewalks are often treated with chemicals such as antifreeze, salt, and ice-melting agents, which can be harmful to your pet’s paws.
—Newsroom Meteorologist, Austin American Statesman, 17 Jan. 2026
For protection against the cold, these butterflies experience a pause in their development and produce a natural antifreeze that keeps them from freezing.
—Karen Brewer Grossman, Southern Living, 7 Jan. 2026
Using generic antifreeze avoids a step in the validation process where a supplier or EV manufacturer would otherwise have to establish whether some special formulation is compatible with the rest of the cooling system and doesn’t cause unforeseen complications.
—IEEE Spectrum, 17 Dec. 2025
See All Example Sentences for antifreeze
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Stephen Underwood, Hartford Courant, 6 Feb. 2026
Roads and sidewalks are often treated with chemicals such as antifreeze, salt, and ice-melting agents, which can be harmful to your pet’s paws.
—Newsroom Meteorologist, Austin American Statesman, 17 Jan. 2026
For protection against the cold, these butterflies experience a pause in their development and produce a natural antifreeze that keeps them from freezing.
—Karen Brewer Grossman, Southern Living, 7 Jan. 2026
Using generic antifreeze avoids a step in the validation process where a supplier or EV manufacturer would otherwise have to establish whether some special formulation is compatible with the rest of the cooling system and doesn’t cause unforeseen complications.
—IEEE Spectrum, 17 Dec. 2025
See All Example Sentences for antifreeze
Cite this Entry
“Antifreeze.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antifreeze. Accessed 16 Feb. 2026.
Copy CitationKids Definition
antifreeze
noun
an·ti·freeze
ˈant-i-ˌfrēz
: a substance added to a liquid (as the water in an automobile radiator) to prevent freezing
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