heart urchin
heart urchin · heart urchins
Any echinoderm of the class SpatangoidaAny echinoderm of the class Spatangoida.
Meaning
1 sensesAny echinoderm of the class Spatangoida.
More definitions
- sea urchin having a heart-shaped body in a rigid spiny shell
Forms
plural: heart urchins| Singular | heart urchin |
|---|---|
| Plural | heart urchins |
regular
Synonyms
1 synonymsany species of Spatangoida:spatangoid