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HDD

American  

abbreviation

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


HDD British  

abbreviation

  1. 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.

Morgan Stanley thinks HDD gross margins can top 50% in the year ahead.

From Barron's • Jan. 2, 2026

The HDD market is up to 10% undersupplied, Woodring’s team said, citing checks with suppliers and vendors.

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