noun, plural sul·ci [suhl-sahy] /ˈsʌl saɪ/.
Origin of sulcus
Related formssub·sul·cus, noun, plural sub·sul·ci.
Examples from the Web for sulci
The brain (Fig. 53) is marked by sulci, contrary to what we find in Ornithorhynchus.The Cambridge Natural History, Vol X., Mammalia|Frank Evers Beddard
The pearly lustre (in the dry state) owing without doubt to the minute sulci on the backs of the cells.Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1.|John MacGillivray
The lymph was purely basal, solely on the arachnoid, not in the fissures or sulci.A History of Epidemics in Britain, Volume II (of 2)|Charles Creighton
The sulcus is bifurcate; the fork is near the base and almost gives the appearance of two sulci on some specimens.
Gyrus, jī′rus, n. one of the rounded edges into which the surface of the cerebral hemisphere is divided by the fissures or sulci.