noun, plural la·cu·nae [luh-kyoo-nee] /ləˈkyu ni/, la·cu·nas.
Examples from the Web for lacuna
The critique extends into nearly every little crevice and lacuna of our civic life.
Sometimes one cell is seen in each lacuna, sometimes shortly after cell-division a lacuna may contain two or more cells.The Vertebrate Skeleton|Sidney H. Reynolds
And this lacuna has around it certain large round eminences which support the veins and arteries that ascend to the ventricle.
This essay is an attempt to fill in a small part of the lacuna.