Definition of "duality" []

• The quality or character of being twofold; dichotomy. (noun)

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.

• "This duality is a manifestation of assumptions about the relationship between objects and ideas, much as Schäffer's color charts were, and they are limiting in similar ways. reference"
• "Anyway, this duality is sort of like the electric and magnetic field duality."
• "Taken collectively, science has its double dependence upon language and experience; but this duality is not significantly traceable into the statements of science taken one by one."