What does MCB stand for?

Boyne Regional Library, Carman, Manitoba - Library symbol - National Library of Canada (NLC)

Machiguenga - Language code (ETLW)

Machine Coated Board (DGA)

Macrochromatin Body - Genetics

Main Circuit Breaker (SAUS)

Main Control Board (NRCH)

Malaysian Cocoa Butter

Managing Civilians to Budget - Army

Mann Custom Boats Inc., Manns Harbor, NC - Manufacturer code for watercraft hull identification number (USCG)

Manually Controlled Barrier (HEAS)

Marine Construction Battalion

Marine Corps Base

Marke Carl Bauer - Carl Bauer Brand (GIS)

Markings Center Brief (MCD)

Mason/Menninger Clinic Bulletin - Medicine (EDAA)

Master Car Builder

Master Cell Bank - Cell line

Master Circuit Breaker - Indian Railway (TIR)

Master of Clinical Biochemistry

Material Certification Board (SAUO)

Material Classification Board (DNAB)

Matheson, Coleman & Bell - Commercial firm

MC Beverages - Vancouver Stock Exchange symbol

McComb, MS - Location identifier - FAA (FAAL)

McKay Conant Brook, Inc. - Commercial firm

Mechanically Controllable Break - Junction - In microstructures

Medical Consultative Board (SAUO)

Membranous Cytoplasmic Body

Memory Control Block (ROAS)

Message Control Block - Computer science (CET)

Metal Corner Bead - Technical drawings

Methodist College, Belfast - Northern Ireland

Methylamino(chloro)benzophenone - Organic chemistry

Metric Conversion Board (NADA)

Metric Conversion Bureau (NADA)

Metropolitan Cemeteries Board - Western Australia

Miami City Ballet

Microbus - NCIC car model code

Microcomputer Board

Microwave Circuit Board (TIMI)

Millwork Cost Bureau - Later, AWI

Miniature Circuit Breaker

Miscellaneous Change Board (SAUO)

Miscellaneous Charges Book (SAUO)

Missouri Concert Ballet

Missouri Council of the Blind (EARSL)

Mobile Construction Battalion - Navy

Modular Controllable Booster (MCD)

Module Control Block (KSC)

Molecular and Cellular Biochemistry - Journal - Medicine (EDAA)

Monochlorinated Biphenyl - Organic chemistry

Monochlorobenzene - Organic chemistry

Moose Creek - Alaska - Seismograph station code, US Geological Survey - Closed (SEIS)

Mortgage Collateralized Bond

Moscow Classical Ballet

Motor Cargo Boat

Motor Carriers Tariff Bureau Inc., Cleveland OH - STAC

Motor Company of Botswana

Multilateral Control Board (SSD)

Mutant Cell Bank - Medicine (EDAA)

Myocardial Bridging - Cardiology