Definition of "pitch-black" [pitch•-black]

• Extremely dark; black as pitch. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Again, I have difficulty separating personal experience from a purely civilian perspective; I have had to rely on a second (and third) magazine, and was able to accomplish that smoothly in pitch-black conditions."
• "We should exercise at least as much caution with those we'll be stuck with in a succession of pitch-black chambers over the subsequent 45 minutes."
• "The men advanced in the sweltering, pitch-black night, scanning the landscape with night-vision goggles and armed with semiautomatic rifles fitted with silencers."