a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.
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How to use Horsehead Nebula in a sentence
It was a medium ship of five thousand tons burden, designed for service in the Horsehead Nebula region.The Pirates of Ersatz | Murray Leinster
British Dictionary definitions for Horsehead nebula
astronomy a dark nebula lying in the constellation of Orion and resembling the head of a horse
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