Question

stratum Alcohol and drug abuse are found in every stratum of society. ˈstrætəm

Accepted Answer

(1) A layer of a substance, especially one of a series of layers. (2) A level of society made up of people of the same rank or position. In geology, a stratum is a layer of rock or soil that is distinct from those above and below it. Rock and soil strata (notice the plural form) can be seen in road cuts, cliffs, quarries, riverbanks, and sand dunes, and in pieces of limestone, slate, and shale. Archaeologists digging in historical sites are careful to note the stratum where each artifact is found. Earth scientists divide the earth's atmosphere into strata, just as oceanographers divide the ocean's depths into strata. And for social scientists, a stratum is a group of people who are similar in some way, such as education, culture, or income.

word	stratum
definition	(1) A layer of a substance, especially one of a series of layers. (2) A level of society made up of people of the same rank or position.
eg_sentence	Alcohol and drug abuse are found in every stratum of society.
explanation	In geology, a stratum is a layer of rock or soil that is distinct from those above and below it. Rock and soil strata (notice the plural form) can be seen in road cuts, cliffs, quarries, riverbanks, and sand dunes, and in pieces of limestone, slate, and shale. Archaeologists digging in historical sites are careful to note the stratum where each artifact is found. Earth scientists divide the earth's atmosphere into strata, just as oceanographers divide the ocean's depths into strata. And for social scientists, a stratum is a group of people who are similar in some way, such as education, culture, or income.
IPA	ˈstrætəm

Stratum Layer People Rock Soil Divide Substance Series