@abbr{abbreviation[, meaning]} ¶You can use the @abbr command for general abbreviations. The
abbreviation is given as the single argument in braces, as in
‘@abbr{Comput.}’. As a matter of style, or for particular
abbreviations, you may prefer to omit periods, as in
‘@abbr{Mr} Stallman’.
@abbr accepts an optional second argument, intended to be used
for the meaning of the abbreviation.
If the abbreviation ends with a lowercase letter and a period, and is
not at the end of a sentence, and has no second argument, remember to
use the @. command (see Ending a Sentence) to get the
correct spacing. However, you do not have to use @. within
the abbreviation itself; Texinfo automatically assumes periods within
the abbreviation do not end a sentence.
In output formats with an appropriate tag, such as HTML and DocBook, this tag is used. Otherwise, the first argument is printed as-is; if the second argument is present, it is printed in parentheses after the abbreviation. For instance:
@abbr{Comput. J., Computer Journal}
produces:
Comput. J. (Computer Journal)
For abbreviations consisting of all capital letters, you may prefer to
use the @acronym command instead. See the next section for
more on the usage of these two commands.