Meaning : A word formed from the initial letters of the several words in the name and pronounced as one word.
Example :
`NATO' is an initialism for North Atlantic Treaty Organization.
The word `scuba' is an acronym for s(elf)-c(ontained) u(nderwater) b(reathing) a(pparatus).
Synonyms : acronym
Meaning : An abbreviation formed from the initial letters of the several words in the name and pronounced separately.
Example :
HTML is an initialism for HyperText Markup Language.