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stratum
A stratum means a layer or a section, or a division of the atmosphere or ocean, or a section of society. (noun)
- An example of a stratum is the cheese layer of a lasagna.
- An example of a stratum is the layer with one soil type in rock sample.
- An example of a stratum is the top layer of skin.
- An example of a stratum in Earth’s atmosphere is the Thermosphere.
- An example of a stratum is the social position of a young person born to a wealthy family.
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See stratum in Webster's New World College Dictionary
See stratum in American Heritage Dictionary 4
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