单词 | ammonoid |
释义 | ammonoid (once / 2954828 pages) n WORD FAMILY ammonoid USAGE EXAMPLESAlthough the process can be pricey, McGowan says, "this paper justifies the expense of examining further ammonoid specimens." Scientific American(Jan 06, 2011) n one of the coiled chambered fossil shells of extinct mollusks Syn|Hyper ammonite fossil the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil |
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