initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
(a) Just Another Non-Existent Terminal or Joint Air Network for Employee Transportation or Janet Airlines, a highly classified air shuttle service for the USAF, serving Area 51 and the Tonopah Test Range