S1U1B3S1T1R1A1T1U1M3
14 points
SUBSTRATUM is validvalid
[n SUBSTRATA, SUBSTRATUMS]
that which underlies something, as a layer of earth lying under another, also SUBSTRATE [n SUBSTRATA or SUBSTRATUMS]
[n SUBSTRATA, SUBSTRATUMS]
that which underlies something, as a layer of earth lying under another, also SUBSTRATE [n SUBSTRATA or SUBSTRATUMS]