Glossary “matter” Definition:
1). Anything that occupies space and possesses mass or weight. 2). All things in nature are composed of matter.
m
max
Glossary “max” Definition:
Acronym form of Maximum
Material Safety Data Sheet (MSDS)
Glossary “Material Safety Data Sheet (MSDS)” Definition:
A sheet required of the product manufacturer by OSHA, containing specific information about hazardous materials to be displayed in any workplace where such materials are used.
MATS
Glossary “MATS” Definition:
Manifold Air Temperature Sensor
matched gear set code
Glossary “matched gear set code” Definition:
Identification marks on two gears that indicate they are matched. They should not be mismatched with another gear set and placed into operation. They are most commonly found on replacement ring and pinion gear sets.
MATCO
Glossary “MATCO” Definition:
Tool manufacturer and supplier to the automotive industry
material expanders
Glossary “material expanders” Definition:
Fillers that are used in the place of active material in a battery; the primary difference between a 3- and 5-year battery.
master leaf
Glossary “master leaf” Definition:
Term used for main leaf, as in a spring.
Mastertech
Glossary “Mastertech” Definition:
Scan tool manufactured by the Vetronix corporation.
MAT
Glossary “MAT” Definition:
Manifold Air Temperature
mat fabric
Glossary “mat fabric” Definition:
Fiberglass fabric with an irregular strand pattern.
match amount
Glossary “match amount” Definition:
When runout of one part and runout of the other part are considered during assembly to cancel each other out.
master kit
Glossary “master kit” Definition:
An engine kit that contains crankshaft and camshaft bearings, lifters, oil pump, pistons, rings, gasket set, and core plugs.
mass tone (tinting)
Glossary “mass tone (tinting)” Definition:
The color of a tinting base prior to mixing with other bases.
master control
Glossary “master control” Definition:
Primary or main control.
master cylinder
Glossary “master cylinder” Definition:
Brake system component having an integral reservoir filled with hydraulic brake fluid where pressure is developed when the driver depresses the brake pedal causing a linkage to move a piston(s).
masking tape
Glossary “masking tape” Definition:
Adhesive used to hold masking paper or plastic into position. It is a high tack, easy-to-tear tape.
mass
Glossary “mass” Definition:
The measure of the quantity of matter that is contained in a given quantity of solid, liquid, or gas.
Mass Air Flow (MAF)
Glossary “Mass Air Flow (MAF)” Definition:
Measurement of the volume and density of the air entering the engine.
mass airflow sensor (MAS)
Glossary “mass airflow sensor (MAS)” Definition:
Device found at the inlet of the intake manifold of an electronic fuel-injection system which supplies the computer with input as to the volume of air entering the manifold, using the temperature differential between a heated platinum wire or a plastic film and the passing air, to generate a signal of varying voltage or frequency.