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单词 exoskeleton
释义

Definition of exoskeleton in English:

exoskeleton

nounˈɛksəʊˌskɛlɪt(ə)nˌɛksəˈskɛlətn
Zoology
  • A rigid external covering for the body in some invertebrate animals, especially arthropods.

    Compare with endoskeleton
    Example sentencesExamples
    • The hard parts may be mineralized, as in the shells of bivalves, or composed of organic material, such as the chitin that makes up the exoskeleton of arthropods.
    • Lobsters, like all animals with exoskeletons, periodically shed their armor as they grow.
    • The advantage of an internal skeleton is that it allows the animal to grow much larger than is the case with the arthropod type exoskeleton.
    • In these specimens the external surface of the exoskeleton is present, unless complete or partial exfoliation is noted.
    • The trilobites comprise a major class-level clade of extinct marine arthropods characterized by calcareous, multisclerite, dorsal exoskeletons.

Derivatives

  • exoskeletal

  • adjective
    Zoology
    • Mud crab exoskeletal remains were abundant in the scat of river otter of the upper Parker River estuary.
      Example sentencesExamples
      • One modification in trilobites might be that the selection was primarily for exoskeletal morphology rather than limb structure.
      • They considered the specimen to be testate, but where the cranidium is broken on the right posterolateral corner, there is no sign of an exoskeletal layer.
      • Both have sophisticated recognition abilities based on olfactory cues emanating from the exoskeletal cuticle.
      • In this paper we report the discovery of a nearly complete trilobite fossil over 680 mm long that yields a reconstructed exoskeletal length of more than 720 mm.
 
 

Definition of exoskeleton in US English:

exoskeleton

nounˌeksəˈskelətnˌɛksəˈskɛlətn
Zoology
  • A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

    Compare with endoskeleton
    Example sentencesExamples
    • In these specimens the external surface of the exoskeleton is present, unless complete or partial exfoliation is noted.
    • The advantage of an internal skeleton is that it allows the animal to grow much larger than is the case with the arthropod type exoskeleton.
    • Lobsters, like all animals with exoskeletons, periodically shed their armor as they grow.
    • The trilobites comprise a major class-level clade of extinct marine arthropods characterized by calcareous, multisclerite, dorsal exoskeletons.
    • The hard parts may be mineralized, as in the shells of bivalves, or composed of organic material, such as the chitin that makes up the exoskeleton of arthropods.
 
 
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更新时间:2024/12/23 22:45:46