antifreeze

noun an·ti·freeze \ ˈan-ti-ˌfrēz \
Updated on: 23 May 2018

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

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

1903

in the meaning defined at sense 1

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ANTIFREEZE Defined for English Language Learners

antifreeze

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

antifreeze

noun an·ti·freeze \ ˈan-ti-ˌfrēz \

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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