understratum


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understratum

(ŭn′dər-strā′təm, -străt′əm)
n. pl. under·strata (-strā′tə, -străt′ə) or under·stratums
A substratum.
References in periodicals archive ?
Not that we have any objection to the colleges and the parlors--they are, of course, well enough; but they do not afford that broad and earth-deep understratum that is necessary for a nation with a resistless physique.