heart urchin

1. 1.

   sea urchin having a heart-shaped body in a rigid spiny shell

   Broadersea urchin

   Part ofSpatangoida

Questions about heart urchin

What does heart urchin mean?

heart urchin means "sea urchin having a heart-shaped body in a rigid spiny shell".

Is heart urchin a common word?

heart urchin is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.