(historical) A coordination body of Marxist-Leninist communist parties in Europe during the early Cold War, formed in part as a replacement for the Communist International (Comintern), and dissolve...

(obsolete) Alternative form of alliballies

(physics) A hypothetical source of extreme-energy cosmic rays (EECR), capable of accelerating particles to 1 ZeV (zetta-electronvolt).

plural of McGahee