What does C. M. E. stand for?

Canadian Manufacturers and Exporters

Certified Municipal Engineer (New Jersey)

Centre for Molecular Epidemiology

Comando de Missiones Especiales (Cuban special operations group)

Club des Micro-Entrepreneurs (French small business owners association)

Conservation of Mechanical Energy (Physics)

Construction Matériel Environnement

(French stormwater treatment equipment manufacturer)

Conseil Mondial des Éleveurs (French: World Council of Farmers)

Composite Materials Engineering (Australia)

Computer-Mediated Education (various schools)

Community Music East (UK)

Coefficient of Moisture Expansion

College of Military Engineering (Pune, India)

Centre for Mathematics Education (est. 1983: The Open University; UK)

Canadian Military Engineers (Canadian Army)

.

.

etc.

The one I think you're talking а bout: Coronal Mass Ejection (from the sun)

Conservation of Mechanical Energy