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Sea urchin
(n)UK
siː ˈɜːʧɪn
US
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.
View moreAt 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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