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.
scar 1. n. 1. A mark left on the skin after a surface injury or wound has healed. 2. A lingering sign of damage or injury, either mental or physical: nightmares, anxiety, and other enduring scars of wartime experiences. 3. Botany A mark indicating a former attachment, as of a leaf to a stem. 4.