• Definition for "lancelet"
    • any one of various tiny, flattened marine organisms…
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  • Sentence for "lancelet"
    • Amphioxus, also known as the lancelet,…
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  • Hypernym for "lancelet"
  • Cross Reference for "lancelet"

lancelet definition

  • noun:
    • any one of various tiny, flattened marine organisms of subphylum Cephalochordata, structurally similar to the vertebrates but having a notochord as opposed to a true vertebral line. Also called amphioxus.
    • some of a team of primitive marine creatures, of subphylum Cephalochordata, having a notochord in the place of a backbone
    • a little fishlike pet (Amphioxus lanceolatus), remarkable when it comes to rudimentary condition of their body organs. It is the particular the course Leptocardia. See amphioxus, leptocardia.
    • A lance.
    • The sand-lance, amphioxns, or branchiostome, a skull-less fish-like vertebrate, representing a genus Branchiostoma or Ámphioxus, a household Branchiostomidæ or Á mphioxidæ, an order Pharyngobranchii, a class Leptocardii, and a ‘branch’ of vertebrates lately called Cephalochorda. See these brands, and Acrania.
    • small translucent lancet-shaped burrowing marine pet; ancient forerunner for the vertebrates
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