Definition of initialese in English:

initialese

Syllabification: in·i·tial·ese
Pronunciation: /iˌniSHəˈlēz
 
/

noun

informal
The use of abbreviations formed by using initial letters.
More example sentences
  • Terms, definitions, and contracted phrases can pile up into a meaningless mess of initialese and confusion when you're about the business of conducting a flight under instrument conditions.
  • But Miss Cleary, of Nashville, in her song ''I.M. Me,'' has engaged in text messaging, a combination of initialese and the euphonic use of the alphabet that deserves scholarly attention.