ammonoid

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Definitions from WordNet

Noun ammonoid has 1 sense

ammonite, ammonoid - one of the coiled chambered fossil shells of extinct mollusks
--₁ is a kind of fossil

Definitions from the Web

Ammonoid

Part of Speech: Noun

Sense 1: A group of extinct marine mollusks that existed for over 300 million years, possessing coiled shells with complex suture patterns.

Sample Sentence 1: The beautifully preserved ammonoid fossil in the museum provides insights into the ancient oceans.

Sense 2: A collector and enthusiast of ammonoids and ammonoid fossils.

Sample Sentence 2: John, an avid ammonoid, spent years building an impressive collection of ammonoid specimens from around the world.

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