• WordNet 3.6
    • n Ludian a Baltic-Finnic language
    • ***
Century Dictionary and Cyclopedia
    • n ludian In geology, the uppermost division of the Eocene Tertiary in the Paris basin, consisting of gypsum and marls, and containing mammalian remains in great abundance (dormice, opossums, pachyderms, and various carnivora which partly have marsupial characters). Also called Priabonian and Paris gypsum.
    • ***