Definition of substramen in English:

substramen

noun

Geology
rare, historical
  • The groundmass or matrix of a concretionary rock.

Origin

Late 18th century. From classical Latin substrāmen bedding for animals, litter, materials laid down on rough ground to provide a smooth surface for vehicles from substernere + -men; compare strāmen straw.

Pronunciation

substramen

/sʌbˈstrɑːmən//sʌbˈstreɪmən/