Definition of stratulum in English:

stratulum

noun

Geology
rare
  • A thin or narrow layer; a folia, a lamina; a subdivision of a stratum. Chiefly in plural.

Origin

Late 18th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From post-classical Latin stratulum from classical Latin stratum + -ulum.

Pronunciation

stratulum

/ˈstreɪtjʊləm//ˈstreɪtʃʊləm/