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Noun: ammonoid  'a-mu`noyd
  1. One of the coiled chambered fossil shells of extinct mollusks
    - ammonite

Derived forms: ammonoids

Type of: fossil

Encyclopedia: Ammonoid

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ammonitic
ammonium
ammonium alum
ammonium carbamate
ammonium carbonate
ammonium chloride
ammonium hydroxide
ammonium ion
ammonium nitrate
ammoniuria
ammonoid
Ammotragus
Ammotragus lervia
ammunition
ammunition chest
amnesia
amnesiac
amnesic
amnesic aphasia
amnestic
amnestic aphasia