1 ammonitoid | Definition of ammonitoid

ammonitoid

adjective
am·​mo·​nit·​oid | \ ¦amə¦nÄ«tˌȯid, əˈmänəˌtȯid\

Definition of ammonitoid

: resembling an ammonite

First Known Use of ammonitoid

1862, in the meaning defined above

History and Etymology for ammonitoid

ammonite entry 1 + -oid

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