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单词 trilobite
释义 tri·lo·bite
\ˈtrīləˌbīt\ noun
(-s)
Etymology: New Latin Trilobites division of Arthropoda comprising the trilobites, from Greek trilobos three-lobed (from tri- three + lobos lobe) + Latin -ites -ite — more at tri-, sleep
: any of numerous extinct Paleozoic marine arthropods that constitute the group Trilobita, have delicate biramous appendages and the segments of the body divided by furrows on the dorsal surface into a median axis and two lateral pleura, are usually of a flattened oval form, and besides the longitudinal lobes present the three transverse body regions of head, thorax, and pygidium of which the first is covered by a continuous shield, the second consists of a variable number of free segments, and the last of a number of coalescent segments
tri·lo·bit·ic \| ̷ ̷ ̷ ̷|bid.ik\ adjective
[fossil of a trilobite]
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更新时间:2024/11/11 19:25:32