Nŭm'mu-līte, n.

noun

(49), n. [Fr. nummulithe, from Lat. nummus, a coin, and Gr. λίθος, stone.] (Palæon.) A fossil of a flattened form, resembling a small coin, belonging to the tribe of Rhizopoda or Polythalamia, and common in the early tertiary period. Dana.