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词汇 Cladocera
释义

Definition of Cladocera in English:

Cladocera

plural nounkləˈdɒs(ə)rəkləˈdäsərə
Zoology
  • An order of minute branchiopod crustaceans which includes the water fleas. They typically have a transparent shell enclosing the trunk, and large antennae which are used for swimming.

    〔动〕枝角目

    Example sentencesExamples
    • In the chapter on the Cladocera, Smith does not address the much-discussed question of whether this Order really is a valid monophyletic group.
    • As a juvenile, Pomoxis nigromaculatus feeds mainly on microscopic prey such as Cyclops, Cladocera, and Daphnia.
    • Salt-tolerant species within the chydorid Cladocera, as well as many freshwater Ostracoda and Chironomidae, push beyond this limit by means of hyper-osmotic regulation.
    • Daphnia are freshwater crustaceans in the order Cladocera that are known to have four expansion segments in the 18S rRNA gene.
    • Osmoregulation in Cladocera has been comprehensively reviewed by Aladin and Potts.

Origin

Modern Latin (plural), from Greek klados 'branch or root' + keras 'horn' (because of the branched antennae).

Definition of Cladocera in US English:

Cladocera

plural nounkləˈdäsərə
Zoology
  • An order of minute branchiopod crustaceans which includes the water fleas. They typically have a transparent shell enclosing the trunk, and large antennae which are used for swimming.

    〔动〕枝角目

    Example sentencesExamples
    • Salt-tolerant species within the chydorid Cladocera, as well as many freshwater Ostracoda and Chironomidae, push beyond this limit by means of hyper-osmotic regulation.
    • Osmoregulation in Cladocera has been comprehensively reviewed by Aladin and Potts.
    • As a juvenile, Pomoxis nigromaculatus feeds mainly on microscopic prey such as Cyclops, Cladocera, and Daphnia.
    • Daphnia are freshwater crustaceans in the order Cladocera that are known to have four expansion segments in the 18S rRNA gene.
    • In the chapter on the Cladocera, Smith does not address the much-discussed question of whether this Order really is a valid monophyletic group.

Origin

Modern Latin (plural), from Greek klados ‘branch or root’ + keras ‘horn’ (because of the branched antennae).

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