sulcus terminalis
noun
sulcus ter·mi·na·lis
-ˌtər-mə-ˈnā-ləs 
plural sulci terminales
-ˌlēz
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
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“Sulcus terminalis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sulcus%20terminalis. Accessed 23 Nov. 2024.
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