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.
1 The midpoint formula helps us find the point that is in the exact middle of any line segment. 2  If we know the endpoints of the line segment, then the midpoint has the coordinates given by this formula. 3  All this is really is the average, or the middle, of the x-coordinates, and the average of the y s as well.