Sea urchin

Sea urchin

siː ˈɜːʧɪn
si ˈɜrʧən
Definition: A marine echinoderm having a spherical or flattened shell covered in mobile spines, with a mouth on the underside and calcareous jaws.
Meaning: Cầu gai, nhum biển hay nhím biển
Not Common
How to use "Sea urchin" vocabulary in sentence (example)

In 2006 a type of sea urchin was listed after being found in the Pacific Ocean.

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At the time, Coppard was working with The Natural History Museum in London and was able to confirm from the photo uploaded that the species was unidentified, making it a new discovery of sea urchin that he named Coelopleurus exquisitus.

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