ammonite

About 0.14 uses per million words.

Meaning

1. noun Any of an extinct group of cephalopods of the subclass Ammonoidea; a fossil shell of such an animal.
2. noun An explosive prepared from a mixture of TNT and ammonium nitrate; a form of amatol, popular in Eastern Europe and China.

Similar words

ammonoid ammonitid cornu ammonis neoammonite amaltheid anomphalid amynodontid anisoceratid heteromorph amphidontid

Often followed by

and zones fauna or king faunas shells zone species

Word family

Ammonite Ammonites ammonites ammonitic