The Test. Tests for Epstein-Barr virus (EBV) antibodies are used to help diagnose infectious mononucleosis (mono) if a person is symptomatic but has a negative mono test.he Test. Tests for Epstein-Barr virus (EBV) antibodies are used to help diagnose infectious mononucleosis (mono) if a person is symptomatic but has a negative mono test.
leaf scar. (botany). A mark on a stem, formed by secretion of suberin and a gumlike substance, showing where a leaf has abscised. 1  Facebook. 2  Twitter.
Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; Leaf beetle. (Zool.) any beetle which feeds upon leaves; esp., any species of the family ChrysomelidÃ¦, as the potato beetle and helmet beetle. Leaf bridge. a draw-bridge having a platform or leaf which swings vertically on hinges.