Definition of "viridian" []

• A durable bluish-green pigment. (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.

• "We needed a bit more help, so we looked up the word 'viridian'."
• "He didn't get the hang of making his own paints overnight, finding that cobalts and cadmiums worked best for him when ground again and again ("I try to make it as fine as I can get it, so that the maximum amount of light can travel through it, to create a stained glass effect") but that viridian became dull ("just the color green") if it were ground too much."
• "To create his trademark pale golds, Van Gogh mixed the bright yellow lead chromate pigment with the white lead sulphate, creating a combination that was subtler than the pure yellow but susceptible to a reaction that creates viridian, a darker shade of spring green."