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ABCD in Wiktionary, the free dictionary.
ABCD is a list of the first four letters in the
English alphabet . It may also refer to:
Film
Medicine
Science
ABCD Schema , a highly structured data exchange and access model for taxon occurrence data (specimens, observations, etc. of living organisms)
ABCD matrix analysis , a type of ray tracing technique used in the design of some optical systems
ABCD -parameters , a type of properties describing the electrical behavior of linear electrical networks
Other uses
ABCd , American streaming service
Action for Boston Community Development , a Boston, Massachusetts-based non-profit social services agency
Asset-based community development , a methodology that seeks to uncover and highlight the strengths within communities
Association of Better Computer Dealers , former name of CompTIA, an American non-profit trade association
ABCD Region , an industrial district outside of São Paulo, Brazil
American-Born Confused Desi , informal term for South Asian Americans born or raised in the United States
ABCD: add, browse, change, delete, another representation of
create, read, update and delete
ABCD line , a Japanese term for embargoes placed against Japan by the Americans, British, Chinese and Dutch, as well as other countries
ABCD ships , the first four steel ships built during the "New Navy" period of U.S. Naval history - USS Atlanta , Boston , Chicago and Dolphin
Four major agriculture commodity companies
Topics referred to by the same term