Definition of "hyperpigmentation" [hyperpigmentation]

• Excess pigmentation, especially of the skin. (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.

• "Heating the melanin in the skin with a laser like this also led to hypo pigmentation and hyperpigmentation, which is the darkening or lightening of the skin."
• "And there are brown spots, or postinflammatory hyperpigmentation, which is common in darker skin."
• "Eve Pearl used a dual foundation and salmon concealer to cover Shaina's hyperpigmentation while remaining true to her rich, natural color."