Definition of antifreeze
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
Recent Examples of antifreeze from the Web
Using cheaper overnight electricity from the grid, a large refrigerator chills water mixed with glycol (a component of antifreeze) below the freezing point.
Last month, a Utah woman was charged with trying to kill a former roommate by stirring antifreeze (which contains the poison, ethylene glycol) into a fruit smoothie.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antifreeze'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of antifreeze
ANTIFREEZE Defined for English Language Learners
Definition of antifreeze for English Language Learners
: a substance that is added to the water in a vehicle's engine to prevent it from freezing
ANTIFREEZE Defined for Kids
Definition of antifreeze for Students
: a substance added to the water in an automobile radiator to prevent its freezing
Seen and Heard
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