Enter a clue or pattern or both:

The Clue

Part of a sac surrounding the heart (10 letter answer)

The Answer

EPICARDIUM

Tags


Notes

The answer EPICARDIUM is so rare that it appears less than once every 2500 puzzles.

Definition

EPICARDIUM as a noun:

1. (epicardium, visceral pericardium) = the innermost of the two layers of the pericardium