methylcyclopentadienyl manganese tricarbonyl
nounAutomotive
(CH₃C₅H₄)Mn(CO)₃ ; an octane number boosting additive to unleaded gasoline to replace tetra-ethyl lead as an anti-knock component
Entries starting with M
422 entries.
metric
To measure or analyse statistical data concerning the quality or effectiveness of a process.
Metroliner
nounRail equipment
A kind of high-speed train that operated between Washington, D.C., and New York City from 1969 to 2006.
Mexican standoff
nounRail equipment
A near-collision between two trains; an averted cornfield meet.
MF
Initialism of medium frequency.
MG
adjectivePaper and pulp
Initialism of machine-glazed.
MGM
nameRail equipment
The station code for the Metheringham railway station in England.
MGN
nameRail equipment
Initialism of Midland and Great Northern.
MGS
Initialism of Mars Global Surveyor.
MHL
Initialism of mobile high-definition link, a cable and link standard, typically for connecting a micro-USB form factor port on a mobile device to an HDMI port on a screen.
mi-parti
adjectiveTextile production
Vertically divided into distinctly-coloured or patterned halves; party per pale.
mica insulator
A sheet of electric insulator material made from mica placed between a power semiconductor device and the heat sink.
microbore
nounPlumbing
A kind of narrow tubing with an outside diameter of 10 millimetres or less.
microcircuit
An electronic device, usually fabricated by photolithography, that is very small and implements several components or their equivalent; an integrated circuit.
microcircuitry
Any system constructed of microcircuits
microcomputer
A computer designed around a microprocessor, smaller than a minicomputer or a mainframe.
microcontroller
A microcomputer on a single chip, used to control some device such as an automobile engine or a toy.
microdoublet
A doublet lens (typically composed of a solid lens and a liquid-filled lens) made by microfabrication
microfacies
The composition, features, or appearance of a portion of a facies small enough to be examined in thin sections, or in rock samples of similar size.
microgram
An SI unit of mass equal to 10⁻⁶ grams. Symbol: μg A unit of mass equal to one millionth of a gram, or 0.000 001 grams.
microhybrid
nounAutomotive
A motor vehicle whose internal combustion engine is automatically shut down and restarted to reduce time spent idling and thereby reduce fuel consumption and emissions.
microkatal
An SI unit of catalytic activity equal to 10⁻⁶ katals. Symbol: μ
microkelvin
An SI unit of thermodynamic temperature equal to 10⁻⁶ kelvins. Symbol: μK
micromole
An SI unit of amount of substance equal to 10⁻⁶ moles. Symbol: μmol
microphonics
The phenomenon where certain components in electronic devices transform mechanical vibrations into an unwanted electrical signal.
microprocessor
The entire CPU of a computer on a single integrated circuit (chip).
microsatellite
An artificial satellite between 10 and 100 kilograms in mass.
microsecond
An SI unit of time equal to 10⁻⁶ seconds. Symbol: μs
microsegregation
nounMetallurgy
segregation within microscopic grains
microstructure
nounMetallurgy
Fine-scale structure.
microtesla
An SI unit of magnetic flux density equal to 10⁻⁶ teslas. Symbol: μT
microwalk
verbRobotics
To walk using very small steps
microwalking
nounRobotics
walking using very short steps
MICTOR
Acronym of matched impedance connector.
midair
A collision between two or more aerospace vehicles in flight.
middle mile
The segment of a telecommunications network linking an operator's core network to the local network plant.
midengine
adjectiveAutomotive
Of a design in which the engine of an automobile is placed between the rear and front axles
midfeather
A support for the centre of a tunnel.
MIL
nounAutomotive
Initialism of malfunction indicator lamp.
mile
An airline mile in a frequent flyer program.
mile marker
A numbered milepost or sign along a highway, or some other road, used to determine the location of a motor vehicle.
milepost
nounAutomotive
A post on a highway, often with one or more fingerposts, showing the distance in miles to nearby places.
milkshake
Accidental emulsion of oil and water in an engine.
mill
A passage underground through which ore is shot.
mill bar
nounMetalworking
A rough bar rolled or drawn directly from a bloom or puddle bar for conversion into merchant iron in the mill.
mill car
A car that operates on rails laid in a mill or factory, usually for carrying bulk materials and waste.
Miller effect
The increase in the equivalent input capacitance of an inverting voltage amplifier due to amplification of the effect of capacitance between the amplifier's input and output terminals.
milliarcsecond
A unit of angle equal to one thousandth of an arcsecond (used especially in astronomy)
milligram
An SI unit of mass equal to 10⁻³ grams. Symbol: mg
millikatal
An SI unit of catalytic activity equal to 10⁻³ katals. Symbol: m
milling
nounMachining
Any of various grinding, cutting, or shredding processes using any of various types of mill.
milling cutter
A rotary cutting tool typically used in milling machines.
milling machine
A machine tool in which a rotating cutter is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape.
milliohmmeter
An ohmmeter for measuring low resistances.
millisecond
An SI unit of time equal to 10⁻³ seconds. Symbol: ms
milpa
A cyclical crop-growing system used throughout Mesoamerica.
Milwaukee Road
The former Chicago, Milwaukee, St. Paul and Pacific Railroad.
mine car
A car that operates on rails laid in a mine, usually for carrying ore, coal, or waste.
miner's moss
Carpeting in sluice boxes used to collect heavy minerals from sluiced paydirt.
mineral right
The right to exploit the mineral resources located on or, especially, beneath a parcel of land.