• Definition for "heart urchin"
    • any heartshaped, spatangoid sea-urchin. See Spatangoid.
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  • Hypernym for "heart urchin"

heart urchin definition

  • noun:
    • any heartshaped, spatangoid sea-urchin. See Spatangoid.
    • A heart-shaped sea-urchin; any spatangoid. Also called mermaid's-head.
    • sea urchin having a heart-shaped body in a rigid spiny layer
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