Definitions for "Sulcus"
Keywords:  furrow, sulci, gyri, groove, fissure
A furrow; a groove; a fissure.
Latin = a groove.
An infolding, or groove, in the cortical surface. A sulcus separates neighboring gyri.
Keywords:  tooth, gum, gumline, gingival, tartar
A space or trough lined by mucous membrane.
A normally occurring space surrounding a healthy tooth, just below the gumline. It has a depth of 1-3mm.
The space between the free gingival and the tooth, having a depth of 1-3mm.