Bible Dictionaries
Coalsack

Webster's Dictionary

(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Coalsack'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/coalsack.html. 1828.