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HDD

American

abbreviation

Computers.

hard disk drive: a storage device containing one or more spinning magnetic hard disks.

HDD British

abbreviation

computing hard disk drive

"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

Etymology

Origin of HDD

First recorded in 1985–90

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.

“We acknowledge that our earlier, more negative HDD industry thesis has proven incorrect—particularly with respect to STX,” wrote analysts led by Mehdi Hosseini.

From Barron's • Jan. 16, 2026

Therefore, prices for nearline HDD are firming, the analysts said.

From MarketWatch • Oct. 26, 2025

Furthermore, densities of larger than 10 Tbit/in² are possible based on a new principle demonstrated by storing multiple recording levels of 3 or 4 compared with the binary level used in HDD technology.

From Science Daily • Apr. 8, 2024

For files you’re working on — and therefore doing a lot of reading and writing — an HDD makes more sense for storage.

From Seattle Times • Jun. 11, 2022

The drive does use a slower HDD and caps out at a 400MB/s transfer speed, but this shouldn’t be too much of an issue unless you’re transferring massive files on a regular basis.

From The Verge • Sep. 29, 2021

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023