An Etymological Dictionary of Astronomy and Astrophysics
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A new type of astronomical object, appearing as an intense → burst of → radio emission, proposed to explain → fast radio bursts. In some models, blitzars result from the sudden → collapse of a hypothetical → supermassive neutron star.

From Ger. Blitz, "→ flash, lightening," + -âr ending component, as in → pulsar.