from The Century Dictionary and Cyclopedia
- n. In Eng. geol, a division of the Upper Purbeckian or Portland Oölites, lying at the summit of the Jurassic series and consisting of limestone with freshwater fossils (Unio) overlain by clays and shales.
Sorry, no etymologies found.
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.