1. Small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
   - sipunculid

Derived forms: peanut worms

Type of: invertebrate

Part of: phylum Sipuncula, Sipuncula

Encyclopedia: Peanut worm

• cardiopathy
• cardiopulmonary
• cardiopulmonary arrest
• cardiopulmonary exercise
• cardiopulmonary resuscitation
• cardiorespiratory
• cardiospasm
• Cardiospermum
• Cardiospermum grandiflorum
• Cardiospermum halicacabum
• cardiovascular
• cardiovascular disease
• cardiovascular system
• carditis
• Cardium
• Cardium edule
• Cardizem
• cardoon
• cardroom
• cards
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• cardsharper
• Carducci
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• Carduelis