Dictionary.net

• Shortened forms of written words or phrases used for brevity.

2010 - Medical Dictionary Database
By DataStellar Co., Ltd

• And abbreviated references. The following list, though necessarily incomplete, may be useful to some readers. A, a, the first letter of the alphabet, is sometimes used in the ancient law books to denote that the paging is the first of that number in the book. As an abbreviation, A is used for anonymous.

1856 - A Law Dictionary
By John Bouvier