magnetar
present participle of hatchet
(astronomy) A neutron star or pulsar with an extremely powerful magnetic field, especially those on which starquakes occur, thought to be the source of some gamma-ray bursts.
An instance of a certain standardized college admissions test in the United States, originally called the American College Test.
(mineralogy) A pyroxene mineral, a sodium aluminium silicate with the chemical formula Na(Al,Fe³⁺)Si₂O₆, found in metamorphic rocks.
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