only 1 use
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Definition
layers
or:
levels, classes, or groups into which people or other things are divided
or:
levels, classes, or groups into which people or other things are divided
- For another thing, he didn't have any idea how to "name three sedimentary strata you observe" or "describe two examples of erosion."Chapter 1 (73% in)
strata = layers
There are no more uses of "strata" in The Lost Hero.
Typical Usage
(best examples)