The meaning of the Acronym XMM is...

XMM is

• X-ray Multi- Mirror satellite
• X-Ray Multimission

More Meanings For XMM:

• X-ray Multi- Mirror satellite
• Cross Media Marketing (delisted)
• X-ray Multi- Mirror satellite
• X-Ray Multimission

XMM is also in:

• Astronomy
• NASA
• NYSE Symbols