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

The Massachusetts Crime Lab determined that the residue contained antifreeze. —Rick Sobey, Boston Herald, 31 Mar. 2026

The colorless gas is also used to make chemicals found in products such as antifreeze, detergents, plastics and adhesives. —Los Angeles Times, 13 Mar. 2026

Some plants reduce the amount of water stored in stems and leaves or produce hormones that act as an antifreeze. —Brandee Gruener, Southern Living, 24 Feb. 2026

Like certain kinds of frogs, some circulate substances through their bodies that act like antifreeze. —Alex Kuffner, The Providence Journal, 14 Feb. 2026

Word History

First Known Use

1903, in the meaning defined at sense 1

Rhymes for antifreeze

• abcs
• absentees
• addressees
• adoptees
• allottees
• amputees
• appellees
• appointees
• arrestees
• artistes
• assamese
• assignees

Kids 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