lacus la·cus (lā'kəs)
n. pl. lacus
lacus Juturnæ is a four-sided basin with a pillar in the middle, on which rested a marble altar decorated with figures in relief.
Now the gradation in size, from the lacus Solis down to the smallest oasis of Lowell, is a complete one.
The spot was afterwards covered by a marsh called the lacus Curtius.
lacus a Lake, a little sea with in the land hauing riuers running into it, or out of it, or both.