What does megagauss mean?
Megagauss is a unit of magnetic flux density equal to one million gauss, or 100 tesla. It is used in scientific and engineering contexts to describe very strong magnetic fields, especially those produced by high-power magnets, pulsed-field systems, and specialized laboratory equipment. The word is formed by combining the metric prefix mega-, meaning one million, with gauss, the older unit named after the German physicist Carl Friedrich Gauss. Although the tesla is the modern SI unit for magnetic flux density and the gauss is now deprecated for most scientific work, megagauss remains a convenient and recognizable term when describing fields at the extreme end of the scale. In general reading, the word signals a highly technical or specialized subject rather than an everyday measurement.
nounA unit of magnetic flux density equal to one million gauss, or 100 tesla. The term is used chiefly in specialized descriptions of very strong magnetic fields.
- A unit of magnetic flux density equal to one million gauss, or 100 tesla.
"The laboratory reported that the experiment generated a magnetic field of several megagauss."
"The magnet produced a field of approximately three megagauss during the test."
"Researchers use megagauss-class equipment to study materials under extreme magnetic conditions."
The plural is used when referring to multiple measured values or magnetic-field strengths.
"The apparatus can generate magnetic fields of several megagausses."
One megagauss is equal to 100 tesla, making it a unit for describing exceptionally powerful magnetic fields.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does megagauss come from?
Megagauss combines the prefix mega-, meaning one million, with gauss, a unit of magnetic flux density named after the German mathematician and physicist Carl Friedrich Gauss. The compound follows the conventional use of metric prefixes to indicate multiples of a base unit. Gauss itself was widely used in older magnetic measurements, although the tesla has since become the standard SI unit.
How megagauss is actually used
This is a specialized technical unit, most often used in physics, materials science, and laboratory or industrial applications. The gauss has been largely replaced by the tesla in SI practice, but megagauss remains useful for expressing very large magnetic-field values.
Easily confused with megagauss
A gauss is the smaller unit of magnetic flux density, while a megagauss equals one million gauss.