Coalsack

or Coal Sack

[ kohl-sak ]
/ ˈkoʊlˌsæk /

noun Astronomy.

a dark nebula in the southern constellation Crux, whose dust particles obscure light from Milky Way stars behind it.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?
Also called Southern Coalsack.

Origin of Coalsack

First recorded in 1625–35; coal + sack1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for Coalsack

Coal Sack

noun

a dark nebula in the Milky Way close to the Southern Cross
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012