a fossil foraminifer of the genus Camerina (Nummulites), having a calcareous, usually disklike shell.
- nummulitic limestone,
Origin of nummulite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for nummulite
The nummulite limestone was undoubtedly oceanic, and the other shells contained in it are marine species.The Story of the Earth and Man|J. W. Dawson
The Eocene includes a series of sandstones and marls with lignite, and these are overlaid by nummulite limestones.
any of various large fossil protozoans of the family Nummulitidae, common in Tertiary times: phylum Foraminifera (foraminifers)
Word Origin for nummulite
C19: from New Latin Nummulites genus name, from Latin nummulus, from nummus coin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012