Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Coal.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an inferior dark diamond used in industry for drilling and polishing

Etymologies

Sorry, no etymologies found.

Support

Help support Wordnik (and make this page ad-free) by adopting the word black diamond.

Examples

    Sorry, no example sentences found.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • Black diamond is a trail rating for an expert trail. This denotes that serious injury can occur in an accident.

    January 12, 2013