noun
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an adjustment, change, or modification
-
the act of altering or state of being altered
Other Word Forms
- prealteration noun
- proalteration adjective
- realteration noun
Etymology
Origin of alteration
First recorded in 1350–1400; Middle English alteracioun, from Medieval Latin alterātiōn-, stem of alterātiō; equivalent to alter + -ation
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.
By studying these samples, the team identified key genetic alterations that drive cancer in cats and found that many of these changes closely resemble those seen in human cancers.
From Science Daily
That dispute is settled, without major alteration to the Senate’s character.
These alterations may affect how the body handles glucose and could increase the risk of developing diabetes.
From Science Daily
One major alteration is how the death of Scarpetta’s father impacts her future career.
From Los Angeles Times
"We wanted to understand what determines the likelihood that cells undergo such chromosomal alterations, and what's the rate at which such abnormalities arise when a still normal cell divides."
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
