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单词 Cephalopoda
释义

Definition of Cephalopoda in English:

Cephalopoda

plural nounˌsɛfələˈpəʊdəˌkɛfələˈpəʊdəˌsefəˈläpədə
Zoology
  • A large class of active predatory molluscs comprising octopuses, squids, and cuttlefish. They have a distinct head with large eyes and a ring of tentacles around a beaked mouth, and are able to release a cloud of inky fluid to confuse predators.

    〔动〕头足纲

    Example sentencesExamples
    • The class Cephalopoda has been traditionally divided into three subclasses on the basis of shell structure, or two subclasses on the basis of gills and other soft parts.
    • It is also now generally thought that they were ancestral to the Cephalopoda and Scaphopoda as well.
    • This section covers almost all of the Mollusca except the three huge clades of advanced mollusks: Bivalvia, Cephalopoda, and Gastropoda.
    • For example, even within Gastropoda and Cephalopoda, large numbers of rearrangements are common.
    • As the most primitive of the Neocephalopoda, they were the ancestors of the Bactridida, which in turn seem to represent the stem group form which all advanced Cephalopoda evolved.

Origin

Modern Latin (plural), from Greek kephalē 'head' + pous, pod- 'foot'.

Definition of Cephalopoda in US English:

Cephalopoda

plural nounˌsefəˈläpədə
Zoology
  • A class of active predatory mollusks comprising octopuses, squids, and cuttlefish. They have a distinct head with large eyes and a ring of tentacles around a beaked mouth and are able to release a cloud of inky fluid to confuse predators.

    〔动〕头足纲

    Example sentencesExamples
    • The class Cephalopoda has been traditionally divided into three subclasses on the basis of shell structure, or two subclasses on the basis of gills and other soft parts.
    • For example, even within Gastropoda and Cephalopoda, large numbers of rearrangements are common.
    • This section covers almost all of the Mollusca except the three huge clades of advanced mollusks: Bivalvia, Cephalopoda, and Gastropoda.
    • It is also now generally thought that they were ancestral to the Cephalopoda and Scaphopoda as well.
    • As the most primitive of the Neocephalopoda, they were the ancestors of the Bactridida, which in turn seem to represent the stem group form which all advanced Cephalopoda evolved.

Origin

Modern Latin (plural), from Greek kephalē ‘head’ + pous, pod- ‘foot’.

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