Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation high-definition television

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • initialism High-definition television

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a television system that has more than the usual number of lines per frame so its pictures show more detail

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