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amphioxus

 

Definitions from WordNet

Noun amphioxus has 1 sense
  1. lancelet, amphioxus - small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates
    --1 is a kind of cephalochordate
    --1 is a member of genus Amphioxus

Definitions from the Web

Amphioxus

Definition:

Amphioxus refers to a genus of small, slender, primitive marine animals belonging to the phylum Chordata. Also known as lancelets, they are commonly found in shallow coastal waters and are characterized by a cylindrical-shaped body, translucent appearance, and a notochord that runs longitudinally along their entire body length. Amphioxus is considered a crucial organism for evolutionary studies due to its close resemblance to the earliest vertebrate ancestors.

Examples:

1. Noun - Scientific Classification: The amphioxus, scientifically known as Branchiostoma lanceolatum, belongs to the subphylum Cephalochordata.

2. Noun - Small Marine Animal: The sandy beach was teeming with tiny amphioxus, wriggling and burrowing in the shallow waters.

3. Adjective - Primitive: During the zoology lecture, the professor discussed the amphioxus, highlighting its importance in understanding the evolutionary origins of vertebrates.

4. Adjective - Resembling Amphioxus: The student's meticulously drawn sketches depicted amphibians with characteristics similar to the amphioxus.

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