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Dictionary Language resources

substratum

Syllabification: (sub·stra·tum)

Pronunciation: /ˈsəbˌstrātəm, -ˌstra-/

Definition of substratum

noun (plural substrata /-tə/)

an underlying layer or substance, in particular, a layer of rock or soil beneath the surface of the ground.
a foundation or basis of something:there is a broad substratum of truth in it

Origin:

mid 17th century: modern Latin, neuter past participle (used as a noun) of Latin substernere, from sub- 'below' + sternere 'strew'. Compare with stratum