A facial cosmetic used to cover blemished 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.
Use "concealer" in a sentence
"If your skin is dry or wrinkled around the eyes, choose a lighter, liquid concealer, which is more moisturizing than a creamier concealer."
"Most concealers are too light for me and just seem to show up on my face as concealer instead of blending into the skin - and I include in that the much vaunted Cle de Peau concealer, which is too dry and slightly cakey looking on me."
"The offender: my makeup - in particular, my concealer which is neither liquid nor the squirt kind."