methane


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Related to methane: natural gas, methanol

methane

 [meth´ān]
an inflammable, explosive gas from decomposition of organic matter.

meth·ane

(meth'ān),
CH4; an odorless gas produced by the decomposition of organic matter; explosive when mixed with 7 or 8 volumes of air, constituting then the firedamp in coal mines.
Synonym(s): marsh gas

methane

(mĕth′ān′)
n.
An odorless, colorless, flammable gas, CH4, the major constituent of natural gas, that is used as a fuel and is an important source of hydrogen and a wide variety of organic compounds.

methane

A simple organic compound—CH4—which is a gas at room temperature.

Pronunciation 
Medspeak-UK: pronounced, MEE thane
Medspeak-US: pronounced, MEH thane

METHANE

One of two mnemonics (the other is CHALET) used in the context of a major incident (mass disaster) for the information that the first ambulance staff to arrive on the scene should relay to the Emergency Operations Centre.

METHANE
Major incident declared (or hospitals to stand by).
Exact location of the incident, with map references if possible.
Type of incident, with brief details of types and numbers of vehicles, trains, buildings, aircraft, etc.
Hazards, present and potential.
Access routes and suitable provisional rendezvous points.
Numbers of approximate priority 1, 2 and 3 patients, dead and injured.
Emergency services present and required including local authorities.

meth·ane

(meth'ān)
An odorless gas produced by the decomposition of organic matter; explosive when mixed with 7 or 8 volumes of air, constituting in such cases the firedamp in coal mines.
References in periodicals archive ?
All of the airborne sensors have the capability to detect enhanced concentrations of methane from ground sources.
(1) The characteristics curve of methane diffusion speed of coal block under fixed triaxial compressive stress state can be divided into four stages, including first is sharply reduce stage, second is hyperbolic reduce stage, third is close to a fixed value stage, fourth stage is 0.
John Moores, an ANU Visiting Fellow based at York University in Canada said they might be able to figure out what really happened during the methane spike last June.
(https://www.newsweek.com/massive-pool-methane-hidden-deep-beneath-earths-surface-discovered-scientists-1455408?utm_source=Cengage&utm_medium=Feed&utm_campaign=Partnerships) Abiotic methane is found locked inside rocks and isn't formed with organic matter.
Now research led by Newcastle University, UK, and published in Scientific Reports, has ruled out the possibility that the levels of methane detected could be produced by the wind erosion of rocks, releasing trapped methane from fluid inclusions and fractures on the planets' surface.
Reinforcing efforts to minimise methane emissions along their supply chains is an essential complement to the reductions in CO2 that are led by increased efficiency and deployment of clean energy technologies.
These actions reduced methane emissions from old, leaky pipes by over 230,000 metric tons of carbon dioxide equivalent.
Sunlight and chemical reactions break up methane molecules within a few centuries, so any methane detected now must have been released relatively recently.
Furthermore, they conducted two parallel experiments to determine the most likely source of methane on Mars to be an ice sheet east of Gale Crater - itself long assumed to be a dried up lake.
Methane was discovered in the Martian atmosphere more than a decade ago, and was thought to have been produced biologically by microorganisms or by abiotic geochemical reactions.
As reported in Nature, using novel sensors to measure methane in meltwater runoff in real time, they observed that methane was continuously exported from beneath the ice.