Definition of "freezing point" []

• The temperature at which a liquid of specified composition solidifies under a specified pressure. (noun)
• The temperature at which the liquid and solid phases of a substance of specified composition are in equilibrium at atmospheric pressure. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "One group of fish, called notothenioids, flourish in the Antarctic ocean, even though the ocean temperature is below the freezing point of their blood."
• "The Mercury was at times 50 deg. below the freezing point of Farenheit, and 22 deg. below that of Reaumur."