Ammonoid Definition
ămə-noid
noun
An extinct cephalopod mollusk of the subclass Ammonoidea of the Devonian to Cretaceous Periods, having a straight or coiled chambered shell characterized by more or less intricate suture patterns where the septa between individual chambers join the outer shell wall.
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Wiktionary
Synonyms:
adjective
Characteristic of an ammonite.
Wiktionary
Other Word Forms of Ammonoid
Noun
Singular:
ammonoid
Plural:
ammonoidsRelated Articles
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