acronym---A
nickname or abbreviation constructed from an entity’s initials or from some
other naming scheme. For example, SEC stands for
the US Securities and Exchange Commission.
Another example would be FNMA or Fannie Mae, which stands
for the Federal National Mortgage Association.
And yet another, LTRO, or long term refinancing option, is a popular
acronym during early 2012. And there are many, many more, now including a whole
lot of NGOs (non-governmental organisations), financial
instruments, etc.