noun
-
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.
You can check for other engineering works and timetable alterations on the National Rail website.
From BBC
The terms of a lease include whether a homeowner needs permission to make alterations and who has responsibility for repairs, maintenance and even dealing with problem neighbours.
From BBC
Surgeons implanted an auxiliary liver graft derived from a genetically modified Diannan miniature pig featuring 10 targeted gene alterations.
From Science Daily
The exterior didn’t undergo any major alterations to the home’s structure as it had been updated by Paul Rice Architecture two decades ago.
From MarketWatch
These alterations, known as mosaic mutations, appear in only some cells rather than throughout the entire body.
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.
