Definitions
There is 1 meaning of the phrase
Heart Urchin.
Heart Urchin - as a noun
Sea urchin having a heart-shaped body in a rigid spiny shell
Example Sentences
"The heart urchin is a marine animal with a distinctive heart-shaped skeleton."
"The heart urchin's scientific name is Echinocardium cordatum."
"The heart urchin's spines help to protect it from predators."
"The heart urchin's shape allows it to be well-adapted to life in soft substrates."
"The heart urchin belongs to the echinoderm family."
