See also: deca, déca, deçà, deca-, and déca- English Proper noun DECA Acronym of Defence Electronics and Components Agency. Acronym of Distributive Education Clubs of America. Noun DECA (plural DECAs) Acronym of DirecTV ethernet-over-coaxial adapter, a device created by DirecTV that allows for the running ethernet over RG59 and RG6 coax cabling. Coordinate term: MoCA Anagrams aced, CEDA, cade, Cade, dace, -cade, ecadWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads