Atlantic Canada Opportunities Agency, the Canadian federal government agency responsible for helping to develop economic capacity in the Atlantic Provinces
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Ant colony optimization algorithms, probabilistic techniques for solving computational problems that can be reduced to finding good paths through graphs
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Anterior communicating artery, a blood vessel of the brain that connects the left and right anterior cerebral arteries
ACOA is also responsible for a subsidiary federal Crown corporation named Enterprise Cape Breton Corporation (ECBC), which has a similar function to ACOA but a specific jurisdictional mandate which includes all of Cape Breton Island and a portion of mainland Nova Scotia in and around the Town of Mulgrave.
There also exist support groups for codependency, such as Co-Dependents Anonymous (CoDA), Al-Anon/Alateen, Nar-Anon, and Adult Children of Alcoholics (ACoA), which are based on the twelve-step program model of Alcoholics Anonymous and also Celebrate Recovery a Christian, Bible-based group.