'Nummulites' definitions:
Definition of 'Nummulites'
From: GCIDE
- Nummulites \Num`mu*li"tes\, n. [NL. See Nummulite.] (Paleon.) A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally. [1913 Webster]