Definition of Microscopium
astronomy
: a southern constellation that is visible between the constellations of Capricornus and Indus and that is represented by the figure of a microscope
- Two red dwarf stars in the southern hemisphere constellation called Microscopium are emitting unpredictable eruptions like giant versions of the small-scale flares that have been seen on the sun for more than a century.
- —David Perlman, San Francisco Chronicle, 1 Sept. 1992
