What is another word for cardium?
Pronunciation: [kˈɑːdi͡əm] (IPA) 
Cardium refers to a marine bivalve mollusk commonly known as the cockle. If you are looking for synonyms for this word, the most common ones are: heart clam, Noah's-ark, and prince. Heart clam relates to the shape of the cockle's shell, which looks like a human heart. Noah's-ark is another popular synonym, derived from the biblical story of Noah, who was said to have gathered two of every kind of animal on an ark during a great flood. Meanwhile, Prince is a term used to describe a particularly large and meaty species of cockle. Other less common synonyms include sea egg and sea biscuit.
