Coal"sack` (?), n. [Coal + 2d
sack.] (Astron.) Any one of the spaces in the Milky
Way which are very black, owing to the nearly complete absence of
stars; esp., the large space near the Southern Cross sometimes called
the Black Magellanic Cloud.
Coal"sack` (?), n. [Coal + 2d
sack.] (Astron.) Any one of the spaces in the Milky
Way which are very black, owing to the nearly complete absence of
stars; esp., the large space near the Southern Cross sometimes called
the Black Magellanic Cloud.
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