1. Arca

noun. type genus of the family Arcidae: ark shells and blood clams.


  • Arcidae
  • genus Arca
  • mollusk genus
  • blood clam
  • family Arcidae

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Sentences with arca

1. Noun, singular or mass
Herbs such as arca shell, myrrh and red peony are all used to treat the symptoms of adhesions such as bloating, pain and inflammation.