pericardial sac

1. 1.

   the membrane surrounding the heart

   Broadersac

Questions about pericardial sac

What does pericardial sac mean?

pericardial sac means "the membrane surrounding the heart".

Is pericardial sac a common word?

pericardial sac is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.