NOUN (2)

1. a loose sleeveless outer garment made from aba cloth; worn by Arabs;

2. a fabric woven from goat hair and camel hair;

WordNet (r) 3.0 (2006):

aba
    n 1: a loose sleeveless outer garment made from aba cloth; worn
         by Arabs
    2: a fabric woven from goat hair and camel hair

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ABA
       American Bankers Association (org., USA, banking)