Noun
a word formed from the initial letters of the several words in the name and pronounced as one word
an abbreviation formed from the initial letters of the several words in the name and pronounced separately
Source: WordNet`NATO' is an initialism for North Atlantic Treaty Organization Source: Internet
the word `scuba' is an acronym for s(elf)-c(ontained) u(nderwater) b(reathing) a(pparatus) Source: Internet
HTML is an initialism for HyperText Markup Language Source: Internet
An initialism is similar to acronym but is not pronounced as a word. Source: Internet
In reaction to this move, in 1965 the Federal Minister of All-German Affairs Erich Mende issued the Directives for the appellation of Germany recommending avoiding the initialism. Source: Internet
Jefferies added a second "C" because he thought it looked better. citation The Franz Joseph Blueprints, the book The Making of Star Trek, and a handful of Star Trek novels state that NCC is an initialism for "Naval Construction Contract". Source: Internet