Meaning of the word stratum in English

What does stratum mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

stratum

US /ˈstreɪt̬.əm/
UK /ˈstreɪt̬.əm/

Noun

1.

one of the parts or layers into which something is separated:

Example:
The report shows that drugs have penetrated every stratum of American society.
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