noun, plural stra·ta [strey-tuh, strat-uh] /ˈstreɪ tə, ˈstræt ə/, stra·tums.
Origin of stratum
Related Words for stratalamina, sheet, level, grade, stratification, gradation, thickness, lode, bed, seam, vein
Examples from the Web for strata
Historical Examples of strata
Gazing on the strata of the earth, he reads the fate of his species.Vivian Grey
Earl of Beaconsfield, Benjamin Disraeli
Now my theory is, you 're in strata here of what we call the Triassic Age.Joy (First Series Plays)
From this it was only a step to the earth's strata, fossils, crystals—a fresh lecture.The Great Hunger
The strata of the past, so visible in other medival cities, are not apparent here.Italy, the Magic Land
And now, what will be the character of these strata, old and new?Essays: Scientific, Political, & Speculative, Vol. I
noun plural -ta (-tə) or -tums
Word Origin for stratum
c.1700, plural of stratum.
"horizontal layer," 1590s, from Modern Latin stratum, special use of Latin stratum "thing spread out, coverlet, pavement," from neuter past participle of sternere "to spread out, lay down, stretch out," from PIE *stre-to- "to stretch, extend," from root *stere- "to spread, extend, stretch out" (see structure (n.)).