WARNING: Antidepressant medications are used to treat a variety of conditions, including depression and other mental/mood disorders. These medications can help prevent suicidal thoughts /attempts and provide other important benefits.
Definition of parallel for Students. 1  1 : a line or surface that lies at or moves in the same direction as another but is always the same distance from it. 2  2 : one of the imaginary circles on the earth's surface running in the same direction as the equator and marking latitude.
8. a parallel line or plane. 9. anything parallel or comparable in direction, course, nature, or tendency, to something else. 10. any of the imaginary lines bearing E and W on the earth's surface, parallel to the equator, that mark the latitude. 11. something identical or similar in essential respects: a case without a parallel. 12. correspondence or analogy. 13. a comparison of things as if regarded side by side. 14. an arrangement of an electrical circuit whereby all positive terminals are connected to one point and all negative ones to another.