[ am-pluh-fi-key-shuhn ]
/ ˌæm plə fɪˈkeɪ ʃən /
Save This Word!

the act of amplifying or the state of being amplified.
expansion of a statement, narrative, etc., as for rhetorical purposes: In the revision, the story underwent considerable amplification.
a statement, narrative, etc., so expanded: The text of the second edition was an amplification.
the matter or substance used to expand an idea, statement, or the like: He added an extra paragraph to his speech as an amplification.
Electricity. increase in the strength of current, voltage, or power.
Genetics. gene amplification.
If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.
Question 1 of 10
Which of the following words means “to make a crackling sound; crackle”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of amplification

First recorded in 1540–50, amplification is from the Latin word amplificātiōn- (stem of amplificātiō). See ample, -i-, -fication
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use amplification in a sentence

British Dictionary definitions for amplification

/ (ˌæmplɪfɪˈkeɪʃən) /

the act or result of amplifying
material added to a statement, story, etc, in order to expand or clarify it
a statement, story, etc, with such additional material
  1. the increase in strength of an electrical signal by means of an amplifier
  2. another word for gain 1 (def. 13)
Also called: gene amplification genetics the production of multiple copies of a particular gene or DNA sequence. It can occur naturally or artificially, by genetic engineering techniques
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

Medical definitions for amplification

[ ăm′plə-fĭ-kāshən ]

The process of increasing the magnitude of a variable quantity, especially the magnitude of voltage, power, or current, without altering any other quality.
The result of such a process.
The process by which genes or DNA sequences are copied in an organism or in the laboratory.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for amplification

[ ăm′plə-fĭ-kāshən ]

An increase in the magnitude or strength of an electric current, a force, or another physical quantity, such as a radio signal.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.