initialism definition

  • noun:
    • An abbreviation comprising the initial letter or letters of terms in a phrase (for instance, IRS for Internal Revenue Service), syllables or aspects of a word (TNT for trinitrotoluene), or a combination of words and syllables (ESP for extrasensory perception) and pronounced by spelling out the letters one after another versus as a solid term.
    • A term formed through the preliminary letter or letters of a number of terms or parts of terms, but that will be it self pronounced letter by letter.

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