sulcus terminalis

sulcus ter·mi·na·lis

noun \-ˌtər-mə-ˈnā-ləs\

plural sulci ter·mi·na·les \-ˌlēz\

Definition of SULCUS TERMINALIS

1

: a V-shaped groove separating the anterior two thirds of the tongue from the posterior third and containing the circumvallate papillae

2

: a shallow groove on the outside of the right atrium of the heart