The purpose of language is to convey information, ideas, and
understanding. Words have been created to achieve those ends reasonably
efficiently, and when a word is not understood the reader can use a
dictionary. Dictionaries are updated from time to time, because
English, a living language, is constantly adding words to the total
lexicon. There is a high likelihood, therefore, of being able to
clarify the meaning of a confusing word written in the text of an
article. But this same capability does not exist for abbreviations!