The meaning of the Acronym HEM is...

HEM is

• Hydrocapsule Encapsulation Machine

More Meanings For HEM:

• Hydrogenic Effective Mass
• Hydrocapsule Encapsulation Machine
• Heavy Equipment Maintenance
• Hitchhike Experiment Module
• Historical Electronics Museum

HEM is also in:

• Electronics
• Military
• Museums
• NASA
• Unfiled