MP3

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the file extension for MPEG Audio Layer-3, a set of standards for compressing and downloading audio files from the internet.

a file compressed in this format.

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Origin of MP3

First recorded in 1990–95

Words nearby MP3

mozo, mozzarella, mozzetta, mozzie, mp, MP3, MP3 player, MP4, MPA, MPAA, m-payment

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use MP3 in a sentence

Put the music that your loved one cherishes on an MP3 player.
How an iPod Can Fight Alzheimer’s and Dementia|Dr. Bill Thomas|July 20, 2014|DAILY BEAST
In 1997, the website MP3.com had begun releasing digital MP3 versions of songs by artists, often with their consent.
Why 1998 Was the Best Year in Music For Millennials|Marlow Stern|June 7, 2013|DAILY BEAST
But the MP3 players died, almost at the same moment, not long after they showed up.
Decentralized Dance Parties: Raves’ Next Wave|Winston Ross|February 3, 2012|DAILY BEAST
Gadgets include things like computers, videogame consoles, smartphones, tablets, and MP3 players.
How Tech-Savvy Parents Are Splurging on Themselves|Dan Lyons|November 29, 2011|DAILY BEAST

MP3 copies have been floating around, of course, and people are as likely to stream something as download it at this stage.
Best Effing Song of the Summer|Michaelangelo Matos|August 24, 2010|DAILY BEAST

British Dictionary definitions for MP3

MP3

abbreviation for

MPEG-1 Audio Layer-3: tradename for software created by the Motion Picture Experts Group that enables files to be compressed quickly to 10% or less of their original size for storage on disk or hard drive or esp for transfer across the internet

an audio or video file created in this way

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

Scientific definitions for MP3

MP3

[ ĕm′pē-thrē′ ]

An MPEG standard used especially for transmitting music digitally over the Internet. Many programs are available to facilitate the transfer of these files, but there are numerous legal issues regarding the swapping of files and violation of copyright laws.

Cultural definitions for MP3

MP3

A file containing compressed digital audio data, often used to transmit music over the Internet.