In summary, AB is an abbreviation that can stand for various terms depending on the context, and its interpretation can vary across different fields such as technology, business, education, geography, government, law and other specialized areas. It's the classic ABC song with big and small letters.Arranged and performed by A.J. Jenkins.Copyright 2010 A.J.Jenkins/KidsTV123: All rights reserved.For a N. The meaning of AB is an abdominal muscle —usually plural. How to use ab in a sentence. We would like to show you a description here but the site won’t allow us. In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present (+) or absent (–), creating the 8 most common blood types (A+, A-, B+, B-, O+, O-, AB+, AB-). Click on a blood type below to learn more. Allen Bradley industrial automation components, integrated control and information solutions from Rockwell Automation make you as productive as possible. This is a pivotal moment for AB, said AB's CEO Seth Bernstein. Onur's appointment to President underscores his criticality to AB and Equitable Holdings, and his strong connections both within the firm and across the industry. Find the latest AllianceBernstein Holding L.P. (AB) stock quote, history, news and other vital information to help you with your stock trading and investing. Blood group AB individuals have both A and B antigens on the surface of their RBCs, and their blood plasma does not contain any antibodies against either A or B antigen. Get the Super Simple App! the alphabet with Finny The Shark is fun and musical! Sing along with Finny and Sparky..