acleistocardia a·cleis·to·car·di·a (ə-klī'stō-kär'dē-ə)
An opening in the oval foramen of the heart.
|an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.|
|opposition to the withdrawal of state support or recognition from an established church, esp. the Anglican Church in 19th-century England.|