Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A substratum.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The layer, or stratum, of earth on which the soil rests; the subsoil.

from the GNU version of the Collaborative International Dictionary of English

  • n. The layer, or stratum, of earth on which the mold, or soil, rests; subsoil.

from The Century Dictionary and Cyclopedia

  • n. A substratum; an underlying stratum; the stratum lying immediately beneath, or forming the lower portion of the one designated: not often used except figuratively.

Etymologies

under- +‎ stratum (Wiktionary)

Examples

Sorry, no example sentences found.

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