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fixed point

British  

noun

  1. physics a reproducible invariant temperature; the boiling point, freezing point, or triple point of a substance, such as water, that is used to calibrate a thermometer or define a temperature scale

  2. maths a point that is not moved by a given transformation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But importantly, domestication is not a fixed point in evolution — it’s an ongoing process.

From Salon • Apr. 23, 2026

A different measure is to compare economies using dollars from a fixed point in time, thus eliminating the effects of inflation.

From The Wall Street Journal • Mar. 20, 2026

There may be enough lateral movement in his stroke to suggest he is not stabilising to a fixed point.

From BBC • May 27, 2025

Compared with their previous operas, which have rotated around a fixed point or situation, “Picture,” Crimp said, has “a kind of linear, sequential propulsion.”

From New York Times • Jul. 3, 2023

At some fixed point in time and space he senses that he need not waste the effort of a glance.

From "The Bluest Eye" by Toni Morrison

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