Answer: strata

AnswerCrossword Clue
STRATASocial levels
STRATAGeologist's concern.
STRATAGeologist's find.
STRATAHorizontal sections.
STRATARock layers.
STRATALayers of rock.
STRATASocial divisions
STRATASocial classes
STRATAClass levels
STRATASheets
STRATAGeologists' studies
STRATALevels
STRATAGeological formations
STRATAEchelons
STRATAStacked beds
STRATATiers
STRATAGeologic layers.
STRATALayers of rock, e.g.
STRATALayers, as in geology class
STRATABed layers?
STRATAThey're one atop another
STRATABrackets
STRATASocietal levels
stratalayer of material
strataa bed or layer artificially made
stratastatistical subpopulation
strataregion of the sea or atmosphere that is analogous to a stratum of the earth
stratasheetlike mass of sedimentary rock or earth of one kind lying between beds of other kinds
stratapart of a historical or sociological series representing a period or a stage of development
stratastratum (a layer of material)
stratalayer of tissue deep stratum of the skin
stratasocioeconomic level of society comprising persons of the same or similar status especially with regard to education or culture
STRATALayers of material
STRATARock layers
STRATARock groups
STRATALayers
STRATAGeologic layers
STRATALayers in beds
STRATAGeologist's layers
STRATARock bands?