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
Dippolito, 34, was convicted and sentenced to 20 years in prison in 2011, but an appellate court awarded her a new trial because of an issue concerning the same antifreeze claim.
Using cheaper overnight electricity from the grid, a large refrigerator chills water mixed with glycol (a component of antifreeze) below the freezing point.
That enzyme converted polyethylene into ethylene glycol, a chemical commonly used in antifreeze.
Another contingency plan calls for the injection of methanol, the chemical used in antifreeze, to keep supplies flowing.
Coolant (also known as antifreeze) works to keep everything, well, cool, by absorbing engine heat and dissipating it through the radiator.
Aluminum needs great corrosion protection to survive, and the corrosion protection in green and red antifreeze is used up in about two years.
Three years later, Terry Long, another former Steeler, committed suicide by drinking antifreeze.
After comparing it with domes on Earth, scientists now believe Ahuna Mons formed when a slushy mix of internal ice and natural antifreeze reached the surface along a duct — just as magma builds volcanoes on our planet.
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
What made you want to look up antifreeze? Please tell us where you read or heard it (including the quote, if possible).