What does MECCA stand for?

Management Enlisted Central Career Administration (SAUO)

Manufacturing Engineering and Cost Control Applications (NITA)

Master Electrical Common Connector Assembly (MCD)

Mechanized Catalog (IEEE)

Mesoscale Experiment Center for Control and Analysis (SAUO)

Mid Eastern Council on Chemical Abuse (MHID)

Milwaukee Exposition and Convention Center and Arena

Minnesota Environmental Control Citizens Association (SAUO)

Missile Environment Computer Control Analysis (MCD)

Missionary and Ecumenical Council of the Church Assembly - Church of England

Model Evaluation Consortium for Climate Assessment

Modular Electron Column Control and Automation