AMMONOID

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

One of the coiled chambered fossil shells of extinct mollusks

Synonyms:

ammonite; ammonoid

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("ammonoid" is a kind of...):

fossil (the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil)

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