Main Entry: sul·cus

Pronunciation: \ˈsəl-kəs\

Function: noun

Inflected Form(s): plural sul·ci \-ˌkī, -ˌkē, -ˌsī\

Etymology: Latin; akin to Old English sulh plow, Greek holkos furrow, helkein to pull

Date: 1662

: furrow, groove; especially : a shallow furrow on the surface of the brain separating adjacent convolutions