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单词 ammonite
释义
N4559866ammoniteSpoken.2Fiction.16Magazine.30Newspaper.5Academic.13

ammonite

/ˈæmənaɪt/
noun
1
an ammonoid fossil, especially one of a later type found chiefly in the Jurassic and Cretaceous periods, typically with intricately frilled suture lines
菊石化石。比较 CERATITE and GONIATITE.
1.1
Typified by ammonoids of the order Ammonitida.
以菊石目菊石为典型。
词源
mid 18th cent.: from modern Latin ammonites, from medieval Latin cornu Ammonis 'horn of Ammon', from the fossil's resemblance to the ram's horn associated with Jupiter Ammon (see AMMONIACAL).
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