Definition of Ammonoid

1. Noun. One of the coiled chambered fossil shells of extinct mollusks.

Exact synonyms: Ammonite
Generic synonyms: Fossil
Derivative terms: Ammonitic



Definition of Ammonoid

1. Noun. ammonite ¹

2. Adjective. Characteristic of an ammonite ¹

¹ Source: wiktionary.com

Definition of Ammonoid

1. ammonite [n -S] - See also: ammonite

Ammonoid Pictures

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Lexicographical Neighbors of Ammonoid

ammonium laureth sulfate
ammonium mandelate
ammonium molybdate
ammonium nitrate
ammonium phosphatide
ammonium phosphatides
ammonium sulfate
ammonium sulphate
ammonium sulphate precipitation
ammonium ylide
ammoniums
ammoniumyl
ammoniumyls
ammoniuria
ammono
ammonoid (current term)
ammonoids
ammonolysis
ammonotelia
ammonotelic
ammonotelism
ammons
ammonylyses
ammos
ammotherapy
ammoxidation
ammoxidations
ammunition
ammunition chest
ammunitions

Literary usage of Ammonoid

Below you will find example usage of this term as found in modern and/or classical literature:

1. An Introduction to Geology by William Berryman Scott (1914)
"More significant is the first appearance of the ammonoid division of the ... which show it to be an ammonoid. Vertebrata. —One of the most characteristic ..."

2. The American Naturalist by American Society of Naturalists, Essex Institute (1871)
"... true ammonoid. This last species presenting itself to the geologist suddenly according to the usual action of the law of acceleration, has young with ..."

3. Organic Evolution by Richard Swann Lull (1917)
"... until the present time, though now rapidly nearing extinction. ammonoids.—The ammonoid radicle is suggested in ... The ammonoid line began in the ..."

4. Text-book of Geology by Sir Archibald Geikie (1903)
"Some of these curious aberrations from the normal ammonoid type are represented in Figs. 453 and 454. Characteristic and peculiar Cretaceous ..."

5. Proceedings of the California Academy of Sciences by California Academy of Sciences (1897)
"loid embryos, while the calcareous shell of the protoconch is an ammonoid character pushed back by acceleration of de%'elopment until it occurs ..."

6. The New International Encyclopædia edited by Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby (1903)
"A curious fossil ammonoid shell found in Cretaceous rocks of Europe, Asia, and America, characterized by the looseness of the turreted shell, the last coil ..."

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