What does MACRO stand for?

Macroassembler (MHDI)

Macrocytosis - Hematology (DAVI)

Macroinstruction (ECII)

Macroprocessor (MHDI)

Massachusetts Association of Community Rehabilitation Organizations (SRA)

Merge and Correlate Recorded Output - Computer science (NASA)

Military Airlift Command Resource Optimization (SAUO)

Monopole, Astrophysics and Cosmic Ray Observatory - Italy

Monopoles, Astrophysics and Cosmic Ray Observatory (SAUO)