understratum en · NOUN
Pronunciation
- (US) audio
Etymology
From under- + stratum.
Meanings
- The layer, or stratum, of earth on which the soil rests; the subsoil.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| understrata | Number=Plur | lexicographic | |
| understratums | Number=Plur | lexicographic |