name: A surname (very rare: popularity rank in the U.S.: #40099)
noun: A type of blue limestone present in parts of southern England and Wales.
noun: (geology) A stratigraphic group from the lower Jurassic of Western Europe, consisting of thin layers of blue limestone.
noun: (geology, obsolete) The lower Jurassic.
noun: Alternative letter-case form of Lias [(geology) A stratigraphic group from the lower Jurassic of Western Europe, consisting of thin layers of blue limestone.]
