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A fine-grained metamorphic rock that splits into thin, smooth-surfaced layers.
(noun)
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A piece of this rock cut for use as roofing or surfacing material or as a writing surface.
(noun)
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A writing tablet made of a similar material.
(noun)
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A record of past performance or activity: start over with a clean slate.
(noun)
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A list of the candidates of a political party running for various offices.
(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.