Selective serotonin reuptake inhibitor. Selective serotonin reuptake inhibitors (SSRIs), also known as serotonin-specific reuptake inhibitors or serotonergic antidepressants,[1] are a class of drugs that are typically used as antidepressants in the treatment of major depressive disorder and anxiety disorders.
Then you're looking for the midpoint! The midpoint of a line segment is the point located midway between the endpoints of the line segment. This tutorial tells you about the midpoint of a line segment.
This method can be used to determine the distance between any two points in a coordinate plane and is summarized in the distance formula. The point that is at the same distance from two points A (x 1, y 1) and B (x 2, y 2) on a line is called the midpoint.