sulcus
noun
sul·cus ˈsəl-kəs 
plural sulci ˈsəl-ˌkī
-ˌkē,
-ˌsī
: furrow, groove
especially : a shallow furrow on the surface of the brain separating adjacent convolutions
Example Sentences
Recent Examples on the Web In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. 
Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 See More
Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate. Jolene Edgar, refinery29.com, 6 Oct. 2021 See More Word History
Etymology
Latin; akin to Old English sulh plow, Greek holkos furrow, helkein to pull
First Known Use
1662, in the meaning defined above
Medical Definition
sulcus
noun
sul·cus ˈsəl-kəs
plural sulci -ˌkī -ˌsī
-ˌsī : furrow, groove
especially : a shallow furrow on the surface of the brain separating adjacent convolutions compare fissure sense 1c