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Related Terms:
Definitions:
Noun
                                                
                        
                            acorn barnacle
                        
                                                
                        
                            rock barnacle
                        
                                                
                        
                            Balanus balanoides
                        
                                                
                                                    
                
                    
                    Definition: barnacle that attaches to rocks especially in intertidal zones
Definition: Semibalanus balanoides, an acorn barnacle common on rocks and other substrates in the intertidal zone of northwestern Europe and both coasts of North America.