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词汇 euphausiid
释义

Definition of euphausiid in English:

euphausiid

nounjuːˈfɔːzɪɪdyo͞oˈfôzēid
Zoology
  • A shrimplike planktonic marine crustacean of an order which includes krill.

    〔动〕磷虾

    Order Euphausiaceae, subclass Malacostraca

    Example sentencesExamples
    • Plankton such as euphausiids are important food for pre-grisle but amphipods and decapods are also consumed.
    • Bowhead whales feed on crustacean zooplankton, primarily large copepods of the genus Calanus and euphausiids.
    • Unexpectedly, even juvenile mysids, which are never planktonic, have similar optics to those of larval euphausiids and decapods, and form refracting superposition eyes in adults.
    • Throughout the euphausiids, decapods, and stomatopods, larvae invariably possess compound eyes, which are naturally complicated structures.
    • To determine the importance of fragmentation, tethered and free-swimming euphausiids were videotaped in the presence of marine snow representing a range of aggregate strengths, sizes, and ages.

Origin

Late 19th century: from modern Latin Euphausia (genus name from Greek eu 'well' + phainein 'to show' + ousia 'substance') + -id2.

Definition of euphausiid in US English:

euphausiid

nounyo͞oˈfôzēid
Zoology
  • A shrimplike, planktonic marine crustacean of an order that includes krill. Many kinds are luminescent.

    〔动〕磷虾

    Order Euphausiaceae, subclass Malacostraca

    Example sentencesExamples
    • To determine the importance of fragmentation, tethered and free-swimming euphausiids were videotaped in the presence of marine snow representing a range of aggregate strengths, sizes, and ages.
    • Throughout the euphausiids, decapods, and stomatopods, larvae invariably possess compound eyes, which are naturally complicated structures.
    • Bowhead whales feed on crustacean zooplankton, primarily large copepods of the genus Calanus and euphausiids.
    • Unexpectedly, even juvenile mysids, which are never planktonic, have similar optics to those of larval euphausiids and decapods, and form refracting superposition eyes in adults.
    • Plankton such as euphausiids are important food for pre-grisle but amphipods and decapods are also consumed.

Origin

Late 19th century: from modern Latin Euphausia (genus name from Greek eu ‘well’ + phainein ‘to show’ + ousia ‘substance’) + -id.

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