1) External organ 2) In front of the heart 
• (a.) Situated in front of the heart; of or pertaining to the praecordia.
pertaining to the precordium (= region over the heart and lower part of the thorax).
<anatomy, cardiology> Pertaining to the precordium, which is the region over the heart and lower part of the thorax. ... (18 Nov 1997) ... 
In front of the heart
Pre·cor'di·al adjective [ Prefix pre- + Latin cor , cordis , heart: confer French précordial .] (Anat.) Situated in front of the heart; of or pertaining to the præcordia. 
Type: Term Pronunciation: prē-kōr′dē-ăl Definitions: 1. Relating to the precordia.
[adj] - in front of the heart
adjective in front of the heart; involving the precordium