Definition of Ab.
1. Abbreviation. about[(reference-book last = first = authorlink = coauthors = editor =Urdang, Laurence others = title = The Random House College Dictionary origdate = origyear = 1975 origmonth = url = format = accessdate = accessyear = accessmonth = edition = date = year =1984 month = publisher =Random House, Inc. location = New York, NY language = id = doi = isbn =0-394-43600-8 lccn = ol = pages =1 chapter = chapterurl = quote =) ¹]
