Acronyms & Abbreviations

The definition of MOS is:

IATA code for Moses Point Airport, Elim, Alaska, United States

Machine Operating System

Macrophages

Magneto-Optic Storage

Main olfactory system

Maintenance Out-of-Service

Maintenance Override Switch

Maintenance, out of service

Major Operating System

Malto-oligosaccharides

Mambo Open Source

Managed Objects

Management Operating System

Management Operations Staff

Management Orientation School

Manager-Operator Services

Mannan oligosaccharide

Mannanoligosaccharides

Manual Observing System

Manual of standards

Manual of style

Manufacturing Operating System

Manufacturing Orders

Margin of Safety

Margin of Services

Margins of Safety

Marine Observation Satellite

Marine Observation School

Marine Observation System

Marine Observational Satellite

Marine Observations Satellite

Marine occupational standard

Marine Oceanographic Satellite

Maritime Operational Intelligence Summary

Master Operating System

Material Order System

Material Ordering System

Mean Opinion Score

Mean Opinion Scores

Mean Opinion Scoring

Measure of Suitability

Measurement of suitability

Measures of Suitability

Media Object Server

Medial orbital sulcus

Medical officers

Medical Outcome Study

Medical outcomes study

Medical Outcomes Survey

Member of the Opposite Sex

Membranous organelles

Memory-Oriented System

Message Oriented Signaling

Metal On Silicone

Metal Oxid Semiconductor

Metal Oxide on a Substrate

Metal Oxide Semiconductor

Metal Oxide Semiconductors

Metal oxide sensor

Metal Oxide Silicon

Metal-Oxide on Substrate

Metal-oxide semiconductor

Metal-oxide silicon

Metal-Oxide Silicon/Semiconductor

Method Of Support

Microprogram Operating System

Microsoft Office Specialist

MIDS On Ship

Military Occupation Specialties

Military Occupation Specialty

Military Occupational Skill

Military Occupational Skills

Military Occupational Speciality

Military Occupational Specialties

Military Occupational Specialty

Military Operational Skill

Military Operational Specialties

Military Operational Specialty

Military Operations Specialty

Minimum Operable Segment

Minimum Operating strip

Minimum Operating System

Minimum Operational Sensitivity

Minimum Operational Signal

Minister of State

Ministry of Shipping

Ministry of Supply

Mirror orientation selection

Misr Overseas Airways

Missed opportunities

Missile on Site

Mission Operating System

Mission Operation System

Mission Operations System

Mission Operations System's

Mitral opening snap

Mixed-oxide semiconductor

Mobile Operations Supervisor

Mobility Operations School

Model Output Statistics

Modular Operating System

Modular Optoelectronic Scanner

Molecular orbitals

Moloney murine sarcoma

Mom Over Shoulder

Moments

Monitor Only Stations

Monocytes

Monooxygenase system

Monterey Elementary School

Month of Service

Months

Morpholino oligonucleotides

Morpholinos

Mosaic

Mosaic Company

Mother over shoulder

Motor Operated Switch

Multi-Object Spectrometer

Multimedia Operating Software

Multiple Optical Switch

Multiprogramming Operating System

Multispectral Optoelectric Scanner

Multiuser Operating System

Museum of Science

Mutual Offset System

Mux Out-of-Sync

My Own Science

Myelofibrosis

Myelofibrosis osteosclerosis