stratum

English dictionary entry

Meanings

noun

One of several parallel horizontal layers of material arranged one on top of another.
A layer of sedimentary rock having approximately the same composition throughout.
Any of the regions of the atmosphere, such as the stratosphere, that occur as layers.
A layer of tissue.
A class of society composed of people with similar social, cultural, or economic status.
A layer of vegetation, usually of similar height.
The level of accuracy of a computer's clock, relative to others on the network.
A historical layer of a language.

Pronunciation

/ˈstɹɑː.təm/ /ˈstɹeɪ.təm/ LL-Q1860 (eng)-Vealhurl-stratum.wav LL-Q1860 (eng)-Vealhurl-stratum2.wav [ˈstɹeɪ.ɾəm] /ˈstɹæt.əm/ [ˈstɹæɾ.əm] /ˈstɹaː.təm/

Word forms

stratum strata stratums

Etymology

Borrowed from Latin strātum (“a spread for a bed, coverlet, quilt, blanket; a pillow, bolster; a bed”), neuter singular of strātus, perfect passive participle of sternō (“spread”). Doublet of estrade and street.

Synonyms

Related words

stratification stratify stratosphere

Derived words

adstratum crystallostratum epistratum lateral stratum mediostratum midstratum overstratum phylostratum spongiostratum stratal stratarchy stratigraphic stratigraphy stratinomy stratum album intermediale stratum basale stratum corneum stratum germinativum stratum granulosum stratum griseum intermediale stratum lemnisci stratum spinosum substratum superstratum understratum

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