Marine Environmental Sciences Consortium - Library network
Master Event Sequence Controller (KSC)
Mescaline
Middle Eastern Studies Center - Ohio State University (APS)
Middle East Service Command - Army - World War II
Middle East Supercomputer Centre - Bahrain Centre for Studies and Research
Middle East Supply Center - World War II
Middle East Supply Centre (SAUO)
Middle East Supply Council - World War II
Miniature Excitatory Synaptic Current - Neurophysiology
Mission Events Sequence Controller - NASA (KSC)
Modular Equipment Standards Committee (AAEL)
Modular Equipment Sub-Committee for Communications (SAUO)