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

Syn: ammonite [WordNet 1.5]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • ammonoid — /am euh noyd /, n. any cephalopod mollusk of the extinct order Ammonoidea, from the Devonian to the Cretaceous periods, having a coiled, chambered shell. [1880 85; < NL Ammonoidea, equiv. to Ammon(ites) name of the order + oidea OIDEA; see… …   Universalium

  • ammonoid — noun Date: 1884 ammonite < Mesozoic ammonoids > …   New Collegiate Dictionary

  • ammonoid — adj. [Gr. Ammon, Jupiter] (MOLLUSCA: Cephalopoda) Pertaining to a shell covered cephalopod …   Dictionary of invertebrate zoology

  • ammonoid — 1. noun ammonite 2. adjective Characteristic of an ammonite …   Wiktionary

  • ammonoid — n. extinct cephalopod mollusk …   English contemporary dictionary

  • ammonoid — am·mo·noid …   English syllables

  • ammonoid — am•mo•noid [[t]ˈæm əˌnɔɪd[/t]] n. pal ammonite …   From formal English to slang

  • ammonoid — noun one of the coiled chambered fossil shells of extinct mollusks • Syn: ↑ammonite • Derivationally related forms: ↑ammonitic (for: ↑ammonite) • Hypernyms: ↑fossil …   Useful english dictionary

  • ammonite — ammonoid ammonoid n. 1. one of the coiled chambered fossil shells of extinct mollusks; same as {ammonite}. Syn: ammonite [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Ammonite — For other uses, see Ammonite (disambiguation). Ammonites Temporal range: 400–65.5 Ma …   Wikipedia

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