Search Result for "ammonoid": 
Wordnet 3.0

NOUN (1)

1. one of the coiled chambered fossil shells of extinct mollusks;
[syn: ammonite, ammonoid]



The Collaborative International Dictionary of English v.0.48:

ammonoid \ammonoid\ n.
   1. one of the coiled chambered fossil shells of extinct
      mollusks; same as ammonite.

   Syn: ammonite
        [WordNet 1.5]


WordNet (r) 3.0 (2006):

ammonoid
    n 1: one of the coiled chambered fossil shells of extinct
         mollusks [syn: ammonite, ammonoid]